Billet aluminum MAF bung for LMM 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.
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!
Do you have a bolt-in style sump that leaks? This is the part that you have been waiting for! We have designed a clamp in type sump that will replace your current bolt-in sump or work as a new install. This sump will replace any sump that uses a 3″ hole in the bottom of your fuel tank and does not have a bolt pattern larger than 4.5″. From our research, this covers most every sump on the market. The o-ring on our sump covers the bolt pattern that was previously drilled during the bolt-in type sump install and creates a nice leak-free install.