Billet aluminum MAF bung for 2011-2016 LML Duramax. The bottom side has a 4.5″ radius machined to fit any 4″ or 5″ tube and includes 2 stainless socket head mounting screws for the MAF sensor.
Machined steel 4.62″ flange (S400 flat V) for your S400 turbo. Most Borg Warner S400 T4 turbine housings utilize this style exhaust outlet flange. It has a machined recess to accept a 4″ pipe.
Our Billet Aluminum Bottom Sump with Integrated Fuel Return System completely eliminates the need to run the return of your aftermarket fuel pump to the top of the tank or cut into the fuel filler neck, therefore cutting install time tremendously!
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