Dodge Ram Twin Turbo Kit – Wehrli – S400/Stock – Bengal Grey – 2003–2007. Built for 5.9L Cummins owners who want compound performance with stock-like manners.

This WCFab kit pairs an S400 over the factory Holset for strong horsepower, improved fuel mileage potential, and superior EGT control. Recommended combos span S475/stock (up to ~750 RWHP with supporting mods) to S480/67 drop-in (1000+ RWHP with supporting mods; not ideal for tow rigs and best with manual trans). Designed for the OEM exhaust manifold; if using an aftermarket OEM-replacement T3 manifold, it must be sent to WCFab for custom fitment before lead time begins.

Features

• High-temp black ceramic hot side and 4" downpipe
• 5" intake, dry air filter with Outerwears pre-filter
• Stainless oil feed/drain lines with fittings
• 3" cold charge and hot-side crossover pipes
• Silicone boots, stainless T-bolt and V-band clamps, O-ring seals
• Heat wrap and clamps; retains passenger-side battery
• Bengal Grey powder coat; installation hardware included
• Turbochargers sold separately; Made in USA

Questions or help selecting the right combo? Call us at 512-982-9393 (Austin, TX) or 562-981-6800 (Los Angeles, CA area). We offer installation and customization at both locations. Considering multiple items? Contact us for shipping discounts. We install on premises at both locations.

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