Don't sacrifice performance for a quieter ride. Eliminates the stock intake resonator and muffler with a straight through 4-inch constant-diameter piece. Clean up your engine bay with the Banks easy-to-install mandrel-bent constant diameter 4-inch intake resonator delete. For even more power and performance, check out our Banks Ram-Air Intake 42249.
- Increase the airflow of your Duramax intake system
- Eliminates factory resonator and intake muffler
- 4-inch mandrel-bent constant diameter steel tubing
- Banks silicone couplers
- Stainless steel hose clamps
- Stainless steel logo
- Easy-to-install
Emissions Compliant: D-161-121
