2007.5-2010 Duramax LMM P1 4" Down Pipe Back Exhaust w/ Muffler (C6004P)2007. 5 2010 Duramax LMM P1 4" Down Pipe Back Exhaust w Muffler (C6004P) Built from Heavy Duty Aluminized Steel, the P1 Performance Products C6004P 4" Down Pipe Back Exhaust System offers a value price without having to compromise on the quality built into every component. While the seams are a major point of rust through with some budget systems, P1 Performance Products utilizes fully sealed tubing which will add years of life to your system. This

Their mandrel-bent exhausts have the lowest bend degree angles and extensive tuning to ensure you have the lowest possible EGT's

This kit replaces the factory plastic fuel filter housing with a new anodized billet aluminum filter base

This exhaust has been specifically tuned to optimize performance

allen wrench and split loom tubing for installation

Engineered with cutting-edge technology and the needs of the market in mind

direct factory replacement for your stock IPR Valve on the7

The valve spring

3 valve there is potential for 30hp+ on 6

3L 4" Turbo Back Exhaust Cab & Chassis w/ Muffler (421113)

Universal Ford switches are orange and white and come with two positap connectors for installation

2011-2016 Duramax LML BD Performance EGR Delete Kit (1090015)

and running a lean AFR can result in serious engine damage