4" DPF Race Pipe (Extended Cab Short Box) | 2007.5-2010 GM 2500/3500 6.6L DURAMAX-431004 GM Cars/Trucks " Featuring a Fleece Performance 63mm

Featuring a Fleece Performance 63mm billet compressor wheel and high flow inconel turbine wheel

Not intended for towing

Nozzle opening pressure is set at 142Bar/2059PSI

spring loaded cylinder and pressure regulation provides up to 150 retarding horsepower throughout the engine's RPM range - not just at high rpm like some designs that use holes or additional parts and claim it as a better idea

4" DPF Race Pipe (Extended Cab Short Box) | 2007.5-2010 GM 2500/3500 6.6L DURAMAX-431004 GM Cars/Trucks " Featuring a Fleece Performance 63mmConstructed out of 16 gauge aluminized steel or T409 Stainless, this exhaust system is designed to simplify installation with included clamps, preweld contour bends and improved flanges. Enjoy a noticeable boost in performance, lowered EGTs and amplified air flow with this Mel's system. For powerhouse performance, Mel's delivers horsepower you can hear! Features: Ease of installation Contour Bent Hangers TorcTite Clamps No Bungs These parts are for