ATLAS 4" Aluminized Steel Down-Pipe Back Exhaust System

Interested in a new exhaust system for your Duramax? Check out the ATLAS DP-Back Dual side exit exhaust system by aFe. This system is constructed from 4" mandrel-bent aluminized steel tubing and uses high quality band clamps and OE-style bayonet hangers comes with a bolt-on bracket. This unit uses all factory mounting locations this provides for a quick, hassle-free installation with no modification necessary. Also included in this exhaust system are dual massive 6" high temp powder coated, wrinkle black tips with laser-cut stainless steel aFe power badges. ATLAS exhaust systems are the perfect combination of performance, fit and value.

Installation is a Snap:
All systems use factory mounting locations providing stability and a hassle-free installation.

Leak-Free Seal:
High quality OE-style flange and band clamps are used for a complete 360 degree sealing surface.

Fits With Spare Tire:
This exhaust system fits perfectly without removing the spare tire.

Flow and Performance:
This ATLAS exhaust system is constructed of 4" mandrel-bent stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGT's.

OE Fitment:
OE-style hangers with bayonet tip are used to maintain a stable pipe location during high vibration and high heat conditions.

Massive 6" Polished Tips:
Finishing off the exhaust are dual polished 304 stainless steel exhaust tips. The tips feature a drain port on the bottom to keep rust and corrosion away. Unique stainless steel laser-cut aFe Power logo plate are riveted on for an aggressive style.

All aFe exhaust systems are engineered and manufactured in our Corona, California facility.