The Wehrli Custom Fab S400 twin turbo kit in gloss black for 2003–2007 Dodge 5.9L Cummins is a compound turbo system (turbos not included) engineered to support high power targets. Depending on turbo selection and fuel upgrades, the kit can be capable of up to about 1000 RWHP, and is recommended for drivers seeking improved power, fuel mileage and EGT management while maintaining manageable turbo spool behavior for daily use.
Product Description
Wehrli 03-07 Dodge 5.9L Cummins S400 Twin Turbo Kit (No Turbo) - Gloss Black
Additional Product Details
Wehrli Custom Fab Twin Turbo Kit S400/Stock, for 2003-2007 Cummins 5.9L, Gloss Black
Features & Benefits
High Temp Black Ceramic Coating on Hot Side and Down Pipe
Stainless Steel Oil Feed and Drain Lines with Fittings
Dry Air filter with Outerwear's Pre-Filter Cover
Retains passenger-side factory battery location
Silicone Boots & Stainless T-Bolt Clamps
3" Cold Charge Pipe Between Turbos
Durable Custom Powder Coat Finish
3" Turbo Hot Side Cross Over Pipe
Installation Hardware Included
Heat Wrap & Clamps
4" Turbo Down Pipe
V-Band Clamps
O-ring seals
Made in USA
5" Intake
Manufacturer Description
2003-2007 5.9L Cummins S400/Stock Compound Turbo Kit. 1000 RWHP capable, depending upon turbo and fuel system modifications. Recommended for daily driver work trucks and tow rigs looking for increased horsepower, better fuel mileage, and superior EGT control with stock-like turbo spool characteristics. Recommended Combinations - S475 / Stock Holset Turbo - Up to 750 RWHP with Supporting Modifications - Best Turbo Spool, performs well on stock fuel setups. S480 / Stock Holset Turbo - 800+ RWHP Capable with Supporting Modifications - A better top-end performance that sacrifices a bit of spool on the lower end when compared to an S475/stock setup. S480 / 63 or 64 Upgraded Drop-In Turbo - 900+ RWHP Capable with Supporting Modifications - Improved top end power with moderate spool characteristics S480 / 67 Upgraded Drop-In Turbo - 1000+ RWHP Capable with Supporting Modifications - Best Top End Power, sacrifices low-end power and turbo spool - Manual trans trucks will allow best use of power band for this setup. The S480 / 67 upgraded drop-in setup is not recommended for tow rigs due to spool characteristics. Not sure which kit is right for you? Give us a call to discuss your build.
