The Best Systems Start With the Best Materials Built from 16 gauge T409 stainless steel our SLM Series performance exhaust systems offer a value price without compromising on the quality built into every component. Featuring a two-piece tail we...

The AFE 49-44017 Mach Force XP 4" Down-Pipe Back Race Exhaust System for your 2007.5-2010 GM 6.6L Duramax is engineered to perform in the most extreme environments. This system is constructed from mandrel bent 4" stainless steel tubing for maximum flow, increased horsepower, increased torque and lower EGTs.

MBRP 5in Down Pipe Back Exhaust System w/o Muffler Aluminized 2007.5-2010 Chevy/GMC 2500/3500

The AFE 49-04059NM ATLAS 4" Downpipe-Back No Muffler Exhaust System for your 2001-2010 GM 6.6L Duramax features a 4" mandrel bent construction and a mufflerless "straight-pipe" design for maximum flow, increased horsepower, increased torque and lower EGTs.

MBRP 4" Down Pipe Back Exhaust System w/ Front Pipe 07.5-10 Chevy/GMC 2500/3500 (Aluminized w/ Mufler)

MBRP 4" Down Pipe Back Aluminized Exhaust System w/ Front Pipe w/o Muffler 2007-2010 Chevy/GMC 2500/3500