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. 50 State Compliant CARB E.O. D-161-121