2001-2004 LB7 Duramax 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 IHI Turbo - Up to 750 RWHP with Supporting Modifications - Best Turbo Spool, performs well on stock fuel setups. WCFab 750 Built Allison transmission recommended.??S480 / Stock IHI Turbo - 800+ RWHP Capable with Supporting Modifications - Better top end performance that sacrifices a bit of spool on the low end compared to an S475/stock setup.WCFab 750+ Built Allison transmission recommended.??S480 / 64mm Drop In Turbo - 900+ RWHP Capable with Supporting Modifications - Improved top end power with moderate spool characteristics.WCFab 750+ Built Allison transmission recommended.??

• 3.5" Cold Side Charge Pipe, 3.5" Turbo Inlet Horn
• 3" cold side intercooler pipe
• 3" One Piece Y-bridge with HD Bead roll end
• 4" Turbo Down Pipe, Ceramic Coated
• 5" Intake, Dry Air Filter with Outerwears Pre-Filter Cover
• Atmoshpere Turbo Pedestal with Built in Oil Return Fitting
• Coolant Overflow Tank with Hoses, Fittings, & Low Coolant Sensor
• Durable Custom Powder Coat Finish
• Made in USA
• Silicone Boots, T-Bolt Clamps, V-Band Clamps, Heat Wrap & Clamps
• Stainless steel oil feed and drain lines with fittings