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Flowtech Unequal Length Shorty Headers

387-11508

made in usa

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Flowtech 11508
$191.95
3 left in stock
Unequal Length Shorty Headers
  • 1988-1991 GM C/K Series Truck 2WD/4WD 283-400
  • 1.5'' Tube
  • 2.5'' Collector
  • Painted Black
  • Ships
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    1995 CHEVROLET C2500

    • Liter: 5.7
    • SubModel: 400 SS
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: 1.5 in. Primary Tubing; 2.5 in. Collector Size; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ Catalytic Converter Compatible Y-Pipe Available Separately~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ Must Modify Stock Exhaust To Retain Cat. Converter~ 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
    • CUI: 350
    • Engine Type: V8 ( 5.7L / 350 )
    • Engine Vin: -

    1993 CHEVROLET C1500

    • Liter: 5.7
    • SubModel: SILVERADO
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: 1.5 in. Primary Tubing; 2.5 in. Collector Size; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; Catalytic Converter Compatible Y-Pipe Available Separately~Must Modify Stock Exhaust To Retain Cat. Converter~w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange
    • CUI: 350
    • Engine Type: V8 ( 5.7L / 350 )
    • Engine Vin: K

    1993 GMC K1500

    • Liter: 5
    • SubModel: SIERRA SPORT
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: 1.5 in. Primary Tubing; 2.5 in. Collector Size; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ Catalytic Converter Compatible Y-Pipe Available Separately~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ Must Modify Stock Exhaust To Retain Cat. Converter~ 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
    • CUI: 305
    • Engine Type: V8 ( 5L / 305 )
    • Engine Vin: H

    1993 GMC K3500

    • Liter: 5.7
    • SubModel: SIERRA SLX
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: 1.5 in. Primary Tubing; 2.5 in. Collector Size; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; Catalytic Converter Compatible Y-Pipe Available Separately~Must Modify Stock Exhaust To Retain Cat. Converter~w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange
    • CUI: 350
    • Engine Type: V8 ( 5.7L / 350 )
    • Engine Vin: K

    1988 GMC R2500

    • Liter: 5.7
    • SubModel: SIERRA CLASSIC
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: 1.5 in. Primary Tubing; 2.5 in. Collector Size; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ Catalytic Converter Compatible Y-Pipe Available Separately~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ Must Modify Stock Exhaust To Retain Cat. Converter~ 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
    • CUI: 350
    • Engine Type: V8 ( 5.7L / 350 )
    • Engine Vin: K

    1989 CHEVROLET V3500

    • Liter: 5.7
    • SubModel: SCOTTSDALE
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: 1.5 in. Primary Tubing; 2.5 in. Collector Size; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; Will Fit Dart Sportmans II Angle Plug Heads~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ Catalytic Converter Compatible Y-Pipe Available Separately~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ Must Modify Stock Exhaust To Retain Cat. Converter
    • CUI: 350
    • Engine Type: V8 ( 5.7L / 350 )
    • Engine Vin: K

    1993 CHEVROLET C1500

    • Liter: 5.7
    • SubModel: SILVERADO
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: 1.5 in. Primary Tubing; 2.5 in. Collector Size; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ Catalytic Converter Compatible Y-Pipe Available Separately~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ Must Modify Stock Exhaust To Retain Cat. Converter~ 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
    • CUI: 350
    • Engine Type: V8 ( 5.7L / 350 )
    • Engine Vin: K

    1991 CHEVROLET K1500

    • Liter: 5
    • SubModel: SPORT
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: 1.5 in. Primary Tubing; 2.5 in. Collector Size; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; Will Fit Dart Sportmans II Angle Plug Heads~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ Catalytic Converter Compatible Y-Pipe Available Separately~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ Must Modify Stock Exhaust To Retain Cat. Converter
    • CUI: 305
    • Engine Type: V8 ( 5L / 305 )
    • Engine Vin: H

    1988 CHEVROLET V30

    • Liter: 5.7
    • SubModel: CUSTOM DELUXE
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: 1.5 in. Primary Tubing; 2.5 in. Collector Size; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; Will Fit Dart Sportmans II Angle Plug Heads~ w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ Catalytic Converter Compatible Y-Pipe Available Separately~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ Must Modify Stock Exhaust To Retain Cat. Converter~ 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
    • CUI: 350
    • Engine Type: V8 ( 5.7L / 350 )
    • Engine Vin: M

    1988 GMC V3500

    • Liter: 5.7
    • SubModel: HIGH SIERRA
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: 1.5 in. Primary Tubing; 2.5 in. Collector Size; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; Catalytic Converter Compatible Y-Pipe Available Separately~Must Modify Stock Exhaust To Retain Cat. Converter~w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Will Fit Dart Sportmans II Angle Plug Heads
    • CUI: 350
    • Engine Type: V8 ( 5.7L / 350 )
    • Engine Vin: K

    1995 GMC K1500

    • Liter: 5
    • SubModel: SIERRA SLS
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: 1.5 in. Primary Tubing; 2.5 in. Collector Size; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ Catalytic Converter Compatible Y-Pipe Available Separately~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ Must Modify Stock Exhaust To Retain Cat. Converter~ 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
    • CUI: 305
    • Engine Type: V8 ( 5L / 305 )
    • Engine Vin: H

    1993 GMC C2500

    • Liter: 5
    • SubModel: SIERRA SLE
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: 1.5 in. Primary Tubing; 2.5 in. Collector Size; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only; w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~ Catalytic Converter Compatible Y-Pipe Available Separately~ w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange~ Must Modify Stock Exhaust To Retain Cat. Converter
    • CUI: 305
    • Engine Type: V8 ( 5L / 305 )
    • Engine Vin: H
    11508 is rated 4.3 out of 5 by 3.
    Rated 5 out of 5 by from Great for the price I’ve had these for about a year and they’re amazing for the price. Picked up power in the low/mid range over the stock manifolds, installation was simple, and they haven’t cracked or started leaking.
    Date published: 2021-04-01
    Rated 4 out of 5 by from nice part Very nice the installation was easy very nice headers
    Date published: 2015-10-15
    Rated 4 out of 5 by from header fit These header fit good but for one thing the oxygen sensor location did not come drilled . I had to open it up so the sensor would fit in all I'm pleased .
    Date published: 2015-06-08
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    • clientName_jegs

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