Huge 2.5 inch stainless mandrel-bent tailpipe with a polished or Black tip. Straight-thru Monster muffler flows up to 140 Percent better than stock. Slashes backpressure; throaty sound. Constructed of heavy-gauge stainless steel, Banks Monster features a supersized, 2.5 inch tailpipe with a stainless tailpipe tip polished to a mirror finish. Banks Monster muffler, its straight-through performance muffler, is the industry's least restrictive. In comparison tests, Banks muffler flowed 501.2 Cubic Feet Per Minute at 1 Pounds Per Square Inch - a 140 Percent improvement over the stock exhaust's 208.6 Cubic Feet Per Minute, and about 44 Percent better than the nearest competitor. Monster virtually eliminates backpressure from the catalytic converter back, for more power and efficiency - and an authoritative, yet civil, exhaust note. For maximum results, combine with Banks TorqueTube system.