Chevrolet Silverado Twin Turbo Kit - Wehrli - S400/Stock - Cat Yellow - 01-04. For 2001-2004 Duramax LB7, this compound kit pairs an S400 atmosphere with the stock IHI for quick spool, lower EGTs, and up to 1000 RWHP with proper turbo and fuel mods.

Made in USA and finished in Cat Yellow for daily and tow use. Suggested combos: S475/stock (~750), S480/stock (800+), S480/64mm (900+); built Allison recommended. Turbochargers not included. Not compatible with Banks intercoolers (contact us for options). Requires passenger-side battery relocation; hot/driver-side intercooler pipe sold separately (WCF100349).

Features

• Atmosphere pedestal, built-in oil return
• 5 in intake, dry filter, pre-filter
• 3 in one-piece Y-bridge
• 3.5 in cold-side pipe, turbo inlet horn; 4 in ceramic-coated downpipe
• Stainless oil lines; boots, clamps, heat wrap; coolant tank w/ sensor

Questions? Call Austin at 512-982-9393 (TX) or our LA area shop at 562-981-6800 (CA). 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