Monster Exhaust System 5-inch Single Exit Black Tip 17-26 Ford F250/F350/F450 6.7L Banks Power5 inch 409 stainless steel constant diameter DPF back system with negative backpressure SideKick tip. 82 percent less backpressure than stock, allowing the engine to produce more horsepower. Improves flow and cuts backpressure. Includes Huge Cerakote Black SideKick tip. Key Features 82 percent less backpressure than stock Virtually eliminates backpressure after the DPF High temp matte black painted stainless steel tip Huge 6. 5 x 7. 5 inch ob round