This ceramic-coated 4 in. downpipe is for builders fabricating their own twin turbo kit on an LML Duramax.
Pair it with Wehrli's LML twin turbo pedestal (WCF100676) for correct fit with a BorgWarner S400 T6 turbo. It comes heat wrapped, with hose clamps and the 5 in. V-band clamp for the turbo connection.
Who it's for
LML race builders fabricating a custom twin turbo setup.
Key specs (per Wehrli)
Engine
6.6L LML Duramax
Diameter
4 in.
Turbo
BorgWarner S400 with T6 exhaust housing
Finish
High-temp ceramic coat, heat wrapped
Shipping weight / box
16 lb · 44 × 12 × 12 in
What's included
4 in. twin-turbo downpipe
Heat wrap with hose clamps
5 in. V-band clamp for the turbo
Fitment notes
For custom-built LML Duramax twin turbo race setups.
Designed to be used with Wehrli twin turbo pedestal WCF100676.
California: Wehrli does not ship this part to California.
Professional install available at Powertech Diesel, Idaho Falls — call 208-542-7793.
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