Chevrolet Silverado 3500 HD Turbo Swap Kit - Wehrli - S400 Single Turbo - Bengal Grey - 01-04. Convert your 6.6L LB7 from the stock IHI layout to an S400-style system from WCFab built for robust airflow and dependable performance.

Upgrades include a 5" fabricated aluminum intake with heavy-duty air box and premium dry filter with pre-filter, 3" mandrel-bent 14-gauge hot and cold side tubes, and a 3" fabricated billet high-flow Y-bridge to reduce restriction. A high-temp ceramic 3" downpipe connects to the OE front-pipe V-band (no cutting). Stainless braided Parker oil lines are included, and the turbo mounts on a T4 fabricated steel pedestal with spacer. Notes: forward-facing thermostat housing WCF100405 required; Half Marmon 4.6" S400 outlet only (not HX40). SXE/Race-cover builds are made to order and may require sending in your turbo; lead time begins when received.

Features

• 5" fabricated aluminum intake, air box, and dry filter with pre-filter
• 3" mandrel-bent 14-gauge hot/cold-side piping
• 3" fabricated high-flow billet Y-bridge and cold-side pipe
• Ceramic-coated 3" downpipe to OE V-band; no cutting required
• Stainless braided Parker oil feed/drain lines; T4 pedestal & spacer
• Silicone boots, T-bolt/V-band clamps, heat wrap, and dipstick relocation
• Bengal Grey powder coat; Made in USA

Have fitment questions or planning a specific turbo? Call our team. We offer installation and customization at our Austin, Texas and Los Angeles, California area locations: TX 512-982-9393, CA 562-981-6800.

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

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