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  • 15.5-16 Duramax 4″ Downpipe Back Delete Exhaust No Muffler

    CAD $849.99

    4 to 5 Stainless Bolt On (+CAD $59.99)
    4 to 6 Stainless Bolt On (+CAD $82.99)
    4 to 7 Stainless Bolt On (+CAD $131.99)
    4 to 5 Black Bolt On (+CAD $59.99)
    4 to 6 Black Bolt On (+CAD $104.99)
    4 to 7 Black Bolt On (+CAD $129.99)
    Product total CAD $849.99
    Options total CAD $0.00
    Grand total CAD $849.99

    15.5-16 Duramax 4″ Downpipe Back Exhaust by P1 Race Parts Competition Exhaust Systems are an ideal solution to pair with a race tuner and delete your diesel particulate filter (DPF) off your diesel pickup truck. You must use a tuner when removing the DPF off of the vehicle.

    Before Ordering This:

    Halfway through 2015, GMC made a production change in the connection between the catalytic converter and the turbo direct pipe on the LML. Please ensure you have the late LML 3-bolt style flange before ordering the kits listed on this page. 

    This pipe is the 3 Bolt Flange. If you have the V Band Style please order the 11-16 pipe. You can see which type of flange you have by looking at the downpipe through the passenger wheel well.

    LML Duramax Flange

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