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. Includes heavy-duty quick-release v-band clamp. The flange can be purchased separately without clamp NOTE: Clamp included is a VERY heavy-duty clamp. It is not just your standard cheap clamp that breaks the first time you try to take it off!
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