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The MBRP 4″ Pro Series Filter-Back Exhaust (S6032304) is the best performance exhaust system that money can buy for your GM 6.6L Duramax. It is a series designed and built for the serious enthusiast who will settle for nothing less. Constructed from T304 stainless steel it delivers optimal durability that keeps on looking its best. Easy to clean and maintain this is the product of choice for owners of lifted vehicles, show trucks, or those who operate in severe environments. This Filter-Back exhaust increases throttle response, horsepower and reduces EGT’s also while delivering a great sound to your Duramax.
- 2011-2019 Chevy/GMC Duramax 6.6L
- 5″ OD Exhaust Tip
- 4″ T304 Stainless Steel Construction
- Filter-Back Exhaust System
- Up To 18HP & 28ft-lb Torque Increase
- Improved Throttle Response