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 / Stealth Mach Hybrid - 1200 RWHP Capable with Supporting Modifications - Best top-end performance that sacrifices a bit of spool on the lower end when compared to an S475/stock setup.
Don't see what you're looking for here? Check out Wehrli's S400/S300 or S400/S400 kits for ultra high-performance applications, or give Wehrli's specialists a call at for assistance custom building a setup that will work best for your needs.
***Retains passenger-side factory battery location***
