4" DPF Race Pipe (Extended Cab Short Box) | 2007.5-2010 GM 2500/3500 6.6L DURAMAX-431004 GM Cars/Trucks " Nozzle opening pressure is set

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

Not intended for towing

Compressor wheel:

Shielded wire harness included Price includes applicable core fee

4" DPF Race Pipe (Extended Cab Short Box) | 2007.5-2010 GM 2500/3500 6.6L DURAMAX-431004 GM Cars/Trucks " Nozzle opening pressure is setConstructed 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