Chevrolet Silverado 3500 Turbo Swap Kit - Wehrli - S400 - Semi-Gloss Black - 01–04. Converts 2001–2004 LB7 Duramax from the stock IHI to an S400 big single with WCFab components.

Engineered for fit and flow, the kit adds a 5-inch fabricated aluminum intake with heavy-duty air box and premium dry filter, 3-inch hot- and cold-side charge pipes, and a 3-inch high-flow billet Y-bridge. Stainless braided Parker oil lines are included, plus a T4 steel pedestal with spacer for S400 units (turbo sold separately). The high-temp ceramic-coated downpipe connects to the factory front-pipe V-band. Note: WCFab forward-facing thermostat housing WCF100405 required; S400 half-Marmon outlet only (not HX40).

Features

• 5" intake with fabricated air box and premium dry filter
• 3" hot/cold charge pipes and 3" high-flow billet Y-bridge
• Ceramic-coated 3" downpipe; T4 pedestal/spacer; stainless Parker oil lines

Questions? Call our Austin shop at 512-982-9393 or our Los Angeles area shop at 562-981-6800. We offer installation and customization at both locations.

Buying multiple items? Contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov