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The Wehrli Custom Fab S400 twin turbo kit for 2001–2004 Chevrolet Duramax LB7 is a comprehensive forced-induction solution sold without turbos. Tailored for daily-driver work trucks and tow rigs, it improves horsepower, fuel economy and EGT control while retaining stock-like spool characteristics. Capable of up to 1,000 RWHP depending on turbo and fuel system choices, the kit includes intercooler piping, oil lines, downpipe and fittings.
Wehrli 01-04 Chevrolet 6.6L LB7 Duramax S400 Twin Turbo Kit (No Turbo) - Candy Teal
