Mounting to the Diesel Particulate Filter (D.P.F.) this system type is designed to get the maximum power and performance possible while still keeping the vehicle legal for highway use. Banks' 4" intermediate pipe and tailpipe are formed of stainless heavy-wall tubing with constant-diameter bends to maximize airflow, minimize backpressure and lower exhaust gas temperatures. A huge 5" polished-stainless steel tailpipe tip sports a rolled edge. Double-walled design with 1/2" air gap keeps heat from tarnishing the exterior mirror finish. Adjustable clamp for positioning on tailpipe.