Formed of heavy-duty stainless steel, Banks' increased-diameter mandrel-bent Monster exhaust pipes (3" intermediate pipe and 3.5" tailpipe) bolt behind the catalytic converter, cutting backpressure up to 79% and increasing flow up to 138% for increased power, longevity and fuel efficiency. The polished-stainless straight-through muffler outflows stock, and delivers a commanding, yet civil, exhaust note. The system includes Banks' exclusive 6" X 5" ob-round (patented design) angle-cut rolled-edge tailpipe tip in your choice of polished chrome-over stainless or high-temp black! And to keep it looking good, there's a 1/2" air gap to help keep heat from tarnishing the finish. An adjustable clamp lets you position it on the tailpipe just right. The lightweight, direct-fit-system bolts on easily.