• Diesel Mafia Performance 17-22 L5P Downpipe Kit **ON BACKORDER**


    Description **on backorder** eta 1/14/22 for Shipping

    3 ½” Down Pipe MADE IN THE USA!


    If you're Installing an Exhaust system, we highly recommend doing the Downpipe

    *The EGR Kit comes with all necessary GM Gaskets for turbo re-install.*

    -(3) Pre-built Heater Hose Assemblies with quick connect fittings
    -Y-Bridge Port Block Off Plate
    -Exhaust Manifold Block Off Plate
    -Thermostat Bridge Billet Block off with O-Ring
    -9th Injector Plug
    -Coolant line Plugs & Caps
    -Necessary Gaskets