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Flowtech Long Tube Headers

387-11500S

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Flowtech 11500S
$335.95
Long Tube Headers
  • Chevy 283-400
  • 1966-87 Chevy/GMC 1/2, 3/4 & 1-Ton 2WD/4WD
  • 1966-91 Blazer/Jimmy K5, Suburban 4WD
  • 1967-87 Chevy Blazer & GMC Jimmy 2WD
  • 1988-91 Chevy/GMC 1-Ton Crew Cab 2WD/4WD
  • 1.5'' Tube
  • 3'' Collector
  • With Air Tubes
    • Free Shipping - Ships directly from the manufacturer
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    Narrow Results

    1981  CHEVROLET K30

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: DELUXE
    • Engine Vin: M
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1981  CHEVROLET K5 BLAZER

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: DELUXE
    • Engine Vin: H
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1985-1986  CHEVROLET K20

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SILVERADO
    • Engine Vin: M
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1985-1986  CHEVROLET K30

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: CUSTOM
    • Engine Vin: M
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1983-1984  CHEVROLET K10

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Must Remove The Rubber Stopper Below The Starter~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SCOTTSDALE
    • Engine Vin: H
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1985-1986  CHEVROLET K20 SUBURBAN

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SILVERADO
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1976  GMC C35

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]
    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA GRANDE
    • Engine Vin: U
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1983-1984  CHEVROLET K20 SUBURBAN

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Must Remove The Rubber Stopper Below The Starter~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: CUSTOM
    • Engine Vin: M
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1983-1984  CHEVROLET K20

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Must Remove The Rubber Stopper Below The Starter~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: CUSTOM
    • Engine Vin: M
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1968  GMC C15/C1500 PICKUP

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Exhaust Manifold Mounted Alternator; Use Bracket PN[10031FLT]~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5.4
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: E
    • CUI: 327
    • EngineType: V8 ( 5.4 L / 327 )

    1976  GMC JIMMY

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA CLASSIC
    • Engine Vin: U
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1968-1969  CHEVROLET C10 PICKUP

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Exhaust Manifold Mounted Alternator; Use Bracket PN[10031FLT]
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: E
    • CUI: 307
    • EngineType: V8 ( 5 L / 307 )

    1981-1982  CHEVROLET K10 SUBURBAN

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: CUSTOM
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975  GMC C15

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: HIGH SIERRA
    • Engine Vin: Y
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1981-1982  CHEVROLET K10

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: CUSTOM
    • Engine Vin: H
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1976  CHEVROLET C20

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SILVERADO
    • Engine Vin: U
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1989-1991  CHEVROLET V2500 SUBURBAN

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SILVERADO
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1984  CHEVROLET K20 SUBURBAN

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Must Remove The Rubber Stopper Below The Starter~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SCOTTSDALE
    • Engine Vin: M
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1968-1969  CHEVROLET K10 SUBURBAN

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Exhaust Manifold Mounted Alternator; Use Bracket PN[10031FLT]
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: E
    • CUI: 307
    • EngineType: V8 ( 5 L / 307 )

    1980  CHEVROLET K10 SUBURBAN

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: CUSTOM DELUXE
    • Engine Vin: M
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1978-1979  GMC JIMMY

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: STREET COUPE
    • Engine Vin: R
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1981-1982  GMC JIMMY

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: STREET COUPE
    • Engine Vin: F
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1986  GMC C3500

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA CLASSIC
    • Engine Vin: H
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1977-1979  CHEVROLET K10 SUBURBAN

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SCOTTSDALE
    • Engine Vin: U
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1981  CHEVROLET C10

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: CUSTOM
    • Engine Vin: G
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1980-1982  GMC K2500 SUBURBAN

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: M
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1989-1991  CHEVROLET V3500

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: CHEYENNE
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972  GMC K15/K1500 SUBURBAN

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: F
    • CUI: 307
    • EngineType: V8 ( 5 L / 307 )

    1973  CHEVROLET K30 PICKUP

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: X
    • CUI: 307
    • EngineType: V8 ( 5 L / 307 )

    1980  CHEVROLET C20

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: CUSTOM DELUXE
    • Engine Vin: X
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1977-1978  GMC K25 SUBURBAN

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA GRANDE
    • Engine Vin: U
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1971  CHEVROLET C10 PICKUP

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: P
    • CUI: 307
    • EngineType: V8 ( 5 L / 307 )

    1977-1979  CHEVROLET K10

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: CHEYENNE
    • Engine Vin: U
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1971  GMC C15/C1500 PICKUP

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: H
    • CUI: 307
    • EngineType: V8 ( 5 L / 307 )

    1980  CHEVROLET K10 SUBURBAN

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SILVERADO
    • Engine Vin: G
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1980  GMC K1500

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA CLASSIC
    • Engine Vin: M
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1981-1982  GMC JIMMY

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: HIGH SIERRA
    • Engine Vin: H
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1968-1969  CHEVROLET K10 SUBURBAN

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Exhaust Manifold Mounted Alternator; Use Bracket PN[10031FLT]~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: E
    • CUI: 307
    • EngineType: V8 ( 5 L / 307 )

    1980  CHEVROLET K20 SUBURBAN

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: CUSTOM DELUXE
    • Engine Vin: P
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1981-1986  CHEVROLET C20

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SCOTTSDALE
    • Engine Vin: H
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1989-1991  CHEVROLET R1500 SUBURBAN

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SILVERADO
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1981-1986  GMC C2500

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: H
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1974  CHEVROLET C30 PICKUP

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: W
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1981  CHEVROLET K10 SUBURBAN

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: DELUXE
    • Engine Vin: H
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1970-1972  CHEVROLET K10 SUBURBAN

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1968  GMC K25/K2500 SUBURBAN

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Exhaust Manifold Mounted Alternator; Use Bracket PN[10031FLT]
    • Liter: 5.4
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: E
    • CUI: 327
    • EngineType: V8 ( 5.4 L / 327 )

    1981  CHEVROLET C10

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: DELUXE
    • Engine Vin: G
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1976  GMC JIMMY

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: U
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1975-1976  CHEVROLET C10

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SILVERADO
    • Engine Vin: V
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1978-1979  CHEVROLET C10

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BIG TEN
    • Engine Vin: U
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1972  GMC K25/K2500 SUBURBAN

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: J
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975  CHEVROLET C10

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: CHEYENNE
    • Engine Vin: Y
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987-1988  CHEVROLET V20 SUBURBAN

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SCOTTSDALE
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1981-1982  GMC C1500 SUBURBAN

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA GRANDE
    • Engine Vin: H
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1985-1986  CHEVROLET K10

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SILVERADO
    • Engine Vin: H
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1970-1972  GMC K15/K1500 PICKUP

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1989-1991  CHEVROLET R3500

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: CHEYENNE
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1983-1984  CHEVROLET K10

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Must Remove The Rubber Stopper Below The Starter~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: CUSTOM
    • Engine Vin: H
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1988  CHEVROLET R30

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SCOTTSDALE
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1971  CHEVROLET C10 PICKUP

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: A
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1973-1974  CHEVROLET K30 PICKUP

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977-1979  CHEVROLET K10

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: CUSTOM DELUXE
    • Engine Vin: U
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1971  GMC C25/C2500 PICKUP

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: H
    • CUI: 307
    • EngineType: V8 ( 5 L / 307 )

    1971  GMC K25/K2500 PICKUP

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: A
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975  CHEVROLET C30

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SILVERADO
    • Engine Vin: Y
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977-1980  CHEVROLET K30

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: CUSTOM DELUXE
    • Engine Vin: R
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1970-1972  GMC K25/K2500 SUBURBAN

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980  GMC K1500

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA CLASSIC
    • Engine Vin: X
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1979  GMC K2500

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: HIGH SIERRA
    • Engine Vin: R
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1985  GMC JIMMY

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: HIGH SIERRA
    • Engine Vin: H
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1968-1969  CHEVROLET K20 PICKUP

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Exhaust Manifold Mounted Alternator; Use Bracket PN[10031FLT]~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: E
    • CUI: 307
    • EngineType: V8 ( 5 L / 307 )

    1971-1972  CHEVROLET BLAZER

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: E
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979-1986  GMC C3500

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA CLASSIC
    • Engine Vin: M
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980  GMC C1500

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: STREET COUPE
    • Engine Vin: X
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1976-1980  CHEVROLET C10

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: CHEYENNE
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979-1980  GMC C1500

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: HEAVY HALF
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979-1982  GMC K2500

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980  GMC K1500

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA GRANDE
    • Engine Vin: M
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975  GMC C25

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA CLASSIC
    • Engine Vin: Y
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977  CHEVROLET C20 SUBURBAN

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SILVERADO
    • Engine Vin: R
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1981-1986  CHEVROLET C20

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SILVERADO
    • Engine Vin: H
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1983-1984  CHEVROLET K5 BLAZER

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Must Remove The Rubber Stopper Below The Starter~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SILVERADO
    • Engine Vin: H
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1976  GMC K25

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA CLASSIC
    • Engine Vin: U
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1973-1974  GMC C15/C1500 SUBURBAN

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: Y
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987  CHEVROLET R10

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: CUSTOM DELUXE
    • Engine Vin: H
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1981-1986  GMC C2500

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: HIGH SIERRA
    • Engine Vin: H
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1975  CHEVROLET K10

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: CHEYENNE
    • Engine Vin: Y
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979-1981  GMC C1500

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA CLASSIC
    • Engine Vin: M
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974  CHEVROLET C30 PICKUP

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1982  GMC K1500 SUBURBAN

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA CLASSIC
    • Engine Vin: H
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1968  GMC K15/K1500 SUBURBAN

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Exhaust Manifold Mounted Alternator; Use Bracket PN[10031FLT]~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5.3
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1979-1986  GMC C2500 SUBURBAN

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA CLASSIC
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974  CHEVROLET C20 PICKUP

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: V
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987  CHEVROLET V20

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SCOTTSDALE
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972  CHEVROLET K10 SUBURBAN

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: F
    • CUI: 307
    • EngineType: V8 ( 5 L / 307 )

    1970-1972  CHEVROLET K20 PICKUP

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ This part is legal for sale or use on Racing Use Only Vehicles~ WARNING: It is against the law to install this part on an Emissions Controlled Vehicle~ The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: E
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987-1988  CHEVROLET R20

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: CUSTOM DELUXE
    • Engine Vin: H
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1971-1972  GMC C25/C2500 PICKUP

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: E
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1973-1974  GMC C15/C1500 PICKUP

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: W
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979  CHEVROLET K10 SUBURBAN

    • Fitment_Note: 1.5 in. Primary Tubing; 3 in. Collector Size; w/Air Fittings; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; May Require Clutch Linkage Modification~ Does Not Fit w/Angle Plug Heads~ Req. A/C Bracket PN[10042FLT]~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SILVERADO
    • Engine Vin: U
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    Items You Need

    Some parts are not legal for use in California or other states with similar laws / regulations

    Motor Vehicles

    WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.

    Tools:

    WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

    Electrical Cords

    WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.