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GMC K25/K2500 Pickup Headers & Manifolds

At JC Whitney, we offer the best selection of GMC K25/K2500 Pickup Headers & Manifolds parts and accessories. We offer an industry leading 30-day Guarantee so that you can shop with confidence! Narrow your selection below by providing the year of your vehicle for a custom list of GMC K25/K2500 Pickup Headers & Manifolds products.

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15 out of 15 products in Exhaust & Emissions
  • FLOWTECH PERFORMANCE HEADERS

    Fits GMC K25/K2500 Pickup

    Performance Headers. Reduce back pressure. Help engine "breathe" better to increase power and gas mileage. Available in high-temperature... more

    Priced from:

    $178.15
  • HEDMAN ENGINE SWAP HEDDER

    Fits GMC K25/K2500 Pickup

    HEDMANN ENGINE SWAP HEDDERS. Improve engine efficiency allowing an increase performance by up to 20%. Remove exhaust gasses faster and... more

    Priced from:

    $191.46
  • JBA CAT4WARD HEADERS

    Fits GMC K25/K2500 Pickup

    JBA shorty headers are one of the best performance upgrades available for any application. more

    Priced from:

    $619.70
  • HEDMAN ELITE HEDDERS

    Fits GMC K25/K2500 Pickup

    ELITE HEDMANN HEDDERS. Best choice for tough off-roading conditions. Made of extra-heavy-duty 14-gauge tubing and bulletproof 3/8" flanges... more

    Priced from:

    $452.52
  • HEDMAN HI-TECH COATING (HTC) HEDDERS

    Fits GMC K25/K2500 Pickup

    HI-TECH COATING (HTC) HEDMANN HEDDERS. Best thermal coating on the market-guaranteed for 5 years! More durable than chrome-won't chip,... more

    Priced from:

    $460.60
  • PATRIOT TIGHT TUCK HEADER

    TIGHT TUCK HEADER. Engineered for street rods and hot rods. Solves many problems associated with engine swaps. Manufactured from durable... more

    Priced from:

    $178.11
  • RACING POWER EXHAUST HEADER KITS

    EXHAUST HEADER KITS. Complete with gaskets and hardware. Shipped separately from factory. NOTE: SKU numbers ending in F are factory shipped... more

    Priced from:

    $222.90
  • MBRP DIESEL MUFFLER

    Does your ride have a stock muffler that is just too restrictive or an old muffler that sounded better in days past? Simply replace it... more

    Priced from:

    $119.99

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