Chevrolet Silverado 2500 HD Turbo Swap Kit - Wehrli S400 Deore Gold (2001-2004). Convert your 6.6L LB7 from the stock IHI to an S400-style setup with proven WCFab components.

Designed for 6.6L LB7 GM 2500/3500 HD, this WCFab kit upgrades intake and charge plumbing for efficient flow and straightforward fitment. It adds a 5 in fabricated aluminum intake with air box and premium dry filter with pre-filter, 3 in mandrel-bent 14 ga hot/cold pipes, and a 3 in high-flow billet Y-bridge. A T4 steel pedestal mounts your S400 (turbo sold separately). Stainless braided oil lines and a high-temp ceramic coated 3 in downpipe that mates to the factory front pipe, no cutting, are included, plus silicone boots, T-bolt/V-band clamps, heat wrap, and a driver-side trans dipstick relocation tube. SXE/race-cover builds are made to order; please specify turbo details.

Features

• 2001-2004 GM 2500/3500 HD with 6.6L LB7 fitment
• S400 Half Marmon 4.6 in downpipe outlet; not HX40
• 5 in intake, 3 in hot/cold pipes, 3 in billet Y-bridge
• Requires WCFab forward-facing thermostat housing WCF100405; Made in USA

Questions or need guidance on turbo sizing and components? Call Texas 512-982-9393 or California 562-981-6800. We offer installation and customization at our Austin, Texas and Los Angeles, California area locations.

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

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