• MBRP 2011-2015 Chevy/GMC Chev/GMC Duramax 6.6L

    $234.70 $214.99
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    Replace that restrictive factory downpipe with a MBRP direct replacement downpipe for more flow, fuel economy, and better performance.

    - Greater Heat Retention
    - 20% Greater Flow Over Stock
    - Richer Diesel Sound
    - Will not Affect Emissions (DPF system or the Urea injection system)
    - Gains of +21 HP and +24 lb/ft Torque

    Removal of OEM catalytic converters may be a violation of emissions laws in your jurisdiction. Ensure that the intended use of this product is permitted.