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ATS Exhaust Features: 4" mandrel bent 409 stainless tubing Over 1" clearance down the back of the fire wall Polished stainless muffler 5" slash cut polished 304 stainless tips Drop exhaust temperature as much as 200°F over the stock exhaust 10-30+ horsepower gain
An exhaust system is one of the first upgrades we recommend for improved performance and lower exhaust gas temperatures. An ATS Pulse-Flow Exhaust System makes any GM Duramax® look and sound absolutely awesome, with only a 1 dB increase from stock.
The muffler restrictions in factory systems remove noise, but create back pressure and raise exhaust temperatures. ATS PulseFlow Exhaust Systems features a "straight through" design. Dual- wound, triple-mesh fiber components allow for maximum performance, and an awesome sound! Our exhaust systems can drop exhaust temperature as much as 200°F over the stock exhaust, with a 30+ horsepower gain.
ATS PulseFlow exhaust systems feature: - 4" mandrel bent 409 stainless tubing from the turbo back.
- Over 1" clearance down the back of the firewall.
- 5" diameter, slash-cut end with radius roll, 24" length, polished 304-type stainless tips that can be positioned to any custom length and clamped into position
07-09 LMM Duramax's Require DPF delete Module/Programmer to work properly - See below for details | 
