Chevrolet Silverado 2500 Turbo Swap Kit – Wehrli S300, Cat Yellow, 01–04. Built for 2001–2004 6.6L LB7 trucks, it converts the stock IHI turbo to an S300‑style setup with proven WCFab parts.

This single fixed‑vane kit refreshes the intake and charge path for better flow. It includes a 4" aluminum intake with air box and dry filter, 3" mandrel‑bent hot/cold pipes, and a 3" billet y‑bridge. Stainless braided oil feed/drain lines are included; turbos (sold separately) mount to a T4 pedestal. The WCFab downpipe uses an HX40 outlet—confirm your turbine housing; forward‑facing thermostat housing WCF100405 is required for clearance.

Features

• 2001–2004 6.6L LB7 fitment
• Ceramic‑coated 3" downpipe (OEM V‑band, no cutting)
• 4" intake with air box and lid
• 3" billet y‑bridge; hot/cold pipes
• Stainless braided oil feed/drain
• T4 pedestal; boots, clamps, heat wrap; trans dipstick relocation

Need help with turbo sizing, HX40 machining, or lead times? Call our team, or book installation/customization at our Austin, TX or Los Angeles, CA facilities: 512-982-9393 (TX), 562-981-6800 (CA).

Ordering multiple items? Ask about shipping discounts. We install on premises at both locations.

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