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The Wehrli WCF S400 single-turbo install kit for 2001–2004 Chevy Silverado 2500/3500 HD with the 6.6L LB7 Duramax contains the fabricated components to upgrade from the stock IHI turbo to a larger-frame BorgWarner S400-style setup. It includes a 5" intake with fabricated air box, premium dry filter, 3" mandrel-bent charge piping, ceramic-coated 3" downpipe, stainless-steel oil lines, T4 pedestal and hardware; some turbo selections require mock-up.
Wehrli 01-04 LB7 Duramax S400 Single Turbo Install Kit - Illusion Blueberry
