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GMC Sierra 2500 Headers & Manifolds

At JC Whitney, we offer the best selection of GMC Sierra 2500 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 Sierra 2500 Headers & Manifolds products.

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18 out of 18 products in Exhaust & Emissions
  • HEDMAN PAINTED HEDDERS

    Fits GMC Sierra 2500

    Does your vehicle still have the original stock manifold? If so, replace that power-sapping stock manifold with a Hedman Painted Header... more

    Priced from:

    $305.59
  • FLOWTECH PERFORMANCE HEADERS

    Fits GMC Sierra 2500

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

    Priced from:

    $298.67
  • GIBSON - PERFORMANCE HEADERS

    Fits GMC Sierra 2500

    Get up to 20 more horses and 30 pounds of torque out of your vehicle with a Gibson Performance Header, made to boost all these things so... more

    Save $304

    On sale from:

    $711.85
    $407.85
  • BBK - HEADERS

    Fits GMC Sierra 2500

    Install a fully-machined BBK header for up to 23 more horsepower and increased overall torque due to the way a header optimizes air flow... more

    Priced from:

    $349.99
  • DORMAN EXHAUST MANIFOLD

    Fits GMC Sierra 2500

    Dorman's Exhaust Manifold is engineered to perform better than the original OE design. This product stands out above the rest of the competition... more

    Priced from:

    $84.16
  • BORLA STAINLESS STEEL HEADERS

    Fits GMC Sierra 2500

    Additional horsepower and torque is lurking in your engine, unleash it with a Borla Stainless Steel Header and feel the extra power every... more

    Priced from:

    $941.99
  • 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 MUFFLERS

    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
  • 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

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