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- Part Number: WCF100567
- Est. Ship Time: Usually Ships in 12-16 Business Days

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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. Not recommended for tow rigs.
***This kit is designed to be used with the OEM exhaust manifold. If you would like to use an aftermarket OEM replacement style manifold like a Steed Speed 3rd Gen T3, you MUST send it in for the kit to be custom-built, and your lead time does not start until the manifold is in Wehril's possession.***
***Retains passenger-side factory battery location***
Specific product notes:
- This kit Requires Custom Tuning for proper operation and performance.
- Kit is designed to be used with the OEM 3rd gen exhaust manifold. If you want to use an aftermarket 3rd gen Style manifold you MUST send it in for kit to be custom built.
- We recommend kits to be installed by a qualified diesel performance shop or mechanic.
Kit Includes:
- 5" Intake
- Dry Air filter
- Outerwear's Pre-Filter Cover
- Stainless Steel Oil Feed and Drain Lines with Fittings
- 4" Turbo Down Pipe
- 3" Turbo Hot Side Cross Over Pipe
- 3" Cold Charge Pipe Between Turbos
- O-ring seals
- Silicone Boots
- T-Bolt Clamps
- V-Band Clamps
- Install Hardware
- Heat Wrap & Clamps
- High Temp Black Ceramic Coating on Hot Side and Down Pipe
- Powder Coating
Shipping time will depend on color combinations selected.
WCFab: WCF100567
