Blessed Performance has the Flowmaster Flow FX Cat-Back Exhaust System 20-26 GM 2500HD/3500HD 6.6L Gas Engine.
Highlights:
- 3.5-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability
- Kit includes complete hardware and factory styled hangers in the stock locations for an easy installation
- A tuned Flow FX style muffler delivers a deep, aggressive to moderate performance tone and improves exhaust flow with no drone
- Max increases of up to 11 hp and 10 lb-ft over the stock exhaust at the wheels
- Tuned performance muffler eliminates interior drone
- Maintains factory warranty
- Lifetime Limited Warranty