To upgrade to the next level of power and performance, consider adding a K&N Filter Injection Perfomance Kit to your order.

The increased airflow provided is an ideal complement to MagnaFlow's Performance Exhaust system and increases power and performance with-out sacrificing reliability or fuel mileage.  Add one to your MagnaFlow Performance system order... and hang on.

In addtion, it is backed by the best warranty in the business.

Huge Increases in Horsepower and Torque for Towing

Engineered for Perfect Fit and Fuction

Includes K&N High-Flow, Washable/Reusable Air Filter that Will Last Up to 100,000 Miles Between Cleanings (depending on driving conditions)

Easy to Install (in 90 minutes or less)

Viturally Eliminates Intake Tract Restriction by Replacing the Air Filter and the Entire Air Path to the Engine

Custom Engineered Intake Tube

Aerodynamically Designed to Drive Air into Your Engine

Custom Heat Shield to Isolate and Provide Cooler Air

50 State Legal and Won't Void Warranty
Your GM Duramax can expect gains of 19 HP & 31 Ft-Lb Torque with the combination of a MagnaFlow Performance Exhaust and a K&N Air Filter.

Additional Information

Click for more information on MagnaFlow's Stage 2 Performance