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Dynomax Thrush Header Back Kit 1967-87 GM K-Series Pick-up 4x4 V8

289-89024

made in usa

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Dynomax 89024
$228.99
Thrush Header Back Kit
  • 1967-87 GM K-Series Pick-up 4x4 V8
  • Dual Mufflers
  • 2.25'' Diameter
  • H-Pipe and header reducers not included.
  • Free Shipping - Ships on 05/18/21

    Thank you! We will notify you when this product becomes available.

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    1977 GMC K25

    • Liter: 6.6
    • SubModel: SIERRA CLASSIC
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: 2.25 in. Aluminized Pipes; H-Pipe Balance Tubes; Thrush Turbo Mufflers; Used w/PN[85003/86003/85503/85089/86089]; Headers w/Air Injection Fittings For PN[85503]
    • CUI: 400
    • Engine Type: V8 ( 6.6L / 400 )
    • Engine Vin: R

    1979 GMC K1500

    • Liter: 6.6
    • SubModel: SIERRA CLASSIC
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: 2.25 in. Aluminized Pipes; H-Pipe Balance Tubes; Thrush Turbo Mufflers; Used w/PN[85003/86003/85503/85089/86089]; Headers w/Air Injection Fittings For PN[85503]
    • CUI: 400
    • Engine Type: V8 ( 6.6L / 400 )
    • Engine Vin: R

    1982 CHEVROLET K10

    • Liter: 5.7
    • SubModel: CUSTOM
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: 2.25 in. Aluminized Pipes; H-Pipe Balance Tubes; Thrush Turbo Mufflers; Used w/PN[85003/86003/85503/85089/86089]; Headers w/Air Injection Fittings For PN[85503]
    • CUI: 350
    • Engine Type: V8 ( 5.7L / 350 )
    • Engine Vin: L

    1975 CHEVROLET K20

    • Liter: 5.7
    • SubModel: CUSTOM DELUXE
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: 2.25 in. Aluminized Pipes; H-Pipe Balance Tubes; Thrush Turbo Mufflers; Used w/PN[85003/86003/85503/85089/86089]; Headers w/Air Injection Fittings For PN[85503]
    • CUI: 350
    • Engine Type: V8 ( 5.7L / 350 )
    • Engine Vin: Y

    1976 CHEVROLET K10

    • Liter: 6.6
    • SubModel: CUSTOM DELUXE
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: 2.25 in. Aluminized Pipes; H-Pipe Balance Tubes; Thrush Turbo Mufflers; Used w/PN[85003/86003/85503/85089/86089]; Headers w/Air Injection Fittings For PN[85503]
    • CUI: 400
    • Engine Type: V8 ( 6.6L / 400 )
    • Engine Vin: U

    1975 GMC K25

    • Liter: 5.7
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: 2.25 in. Aluminized Pipes; H-Pipe Balance Tubes; Thrush Turbo Mufflers; Used w/PN[85003/86003/85503/85089/86089]; Headers w/Air Injection Fittings For PN[85503]
    • CUI: 350
    • Engine Type: V8 ( 5.7L / 350 )
    • Engine Vin: Y

    1979 CHEVROLET K10

    • Liter: 6.6
    • SubModel: SCOTTSDALE
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: 2.25 in. Aluminized Pipes; H-Pipe Balance Tubes; Thrush Turbo Mufflers; Used w/PN[85003/86003/85503/85089/86089]; Headers w/Air Injection Fittings For PN[85503]
    • CUI: 400
    • Engine Type: V8 ( 6.6L / 400 )
    • Engine Vin: R

    1980 CHEVROLET K10

    • Liter: 5.7
    • SubModel: CHEYENNE
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: 2.25 in. Aluminized Pipes; H-Pipe Balance Tubes; Thrush Turbo Mufflers; Used w/PN[85003/86003/85503/85089/86089]; Headers w/Air Injection Fittings For PN[85503]
    • CUI: 350
    • Engine Type: V8 ( 5.7L / 350 )
    • Engine Vin: M

    1980 GMC K1500

    • Liter: 6.6
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: 2.25 in. Aluminized Pipes; H-Pipe Balance Tubes; Thrush Turbo Mufflers; Used w/PN[85003/86003/85503/85089/86089]; Headers w/Air Injection Fittings For PN[85503]
    • CUI: 400
    • Engine Type: V8 ( 6.6L / 400 )
    • Engine Vin: R

    1980 CHEVROLET K10

    • Liter: 7.4
    • SubModel: SILVERADO
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: 2.25 in. Aluminized Pipes; H-Pipe Balance Tubes; Thrush Turbo Mufflers; Used w/PN[85003/86003/85503/85089/86089]
    • CUI: 454
    • Engine Type: V8 ( 7.4L / 454 )
    • Engine Vin: W

    1980 GMC K3500

    • Liter: 5.7
    • SubModel: SIERRA GRANDE
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: 2.25 in. Aluminized Pipes; H-Pipe Balance Tubes; Thrush Turbo Mufflers; Used w/PN[85003/86003/85503/85089/86089]; Headers w/Air Injection Fittings For PN[85503]
    • CUI: 350
    • Engine Type: V8 ( 5.7L / 350 )
    • Engine Vin: L

    1980 CHEVROLET K10

    • Liter: 7.4
    • SubModel: SILVERADO
    • Aspiration: NATURALLY ASPIRATED
    • Fitment Notes: 2.25 in. Aluminized Pipes; H-Pipe Balance Tubes; Thrush Turbo Mufflers; Used w/PN[85003/86003/85503/85089/86089]
    • CUI: 454
    • Engine Type: V8 ( 7.4L / 454 )
    • Engine Vin: S
    89024 - Thrush Header Back Exhaust Systems is rated 3.0 out of 5 by 2.
    Rated 4 out of 5 by from Fits well. I put this on a 78 Chevy 1/2 ton 4x4 with a 3" body and suspension lift and everything still fit nicely. The mufflers are a little too quite for my liking an probably should have got the glass packs other than that it was well worth the money.
    Date published: 2017-11-12
    Rated 2 out of 5 by from Cheap. Cheap cheap Bought this it came in a box that was exploded! Than I went to install and all the clamp nuts were missing, than the washers supplied for the hangers do not fit the bolts it came with. The washer hole is to small for the bolt to fit through. The clamps you have to squeeze with big channel locks to fit. The bends on the pipes are not accurately placed. You have to modify yourself it's not exact.
    Date published: 2020-08-23
    • y_2021, m_4, d_12, h_16
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    • clientName_jegs

    Is this a 2.5 inch or 2.25 system?

    Asked by: Mike1989
    This kit is 2.25 inches.
    Answered by: Jon Jegs Tech
    Date published: 2017-11-14
    • y_2021, m_4, d_12, h_16CST
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