Performance Gains: In testing, the cat-back exhaust system produced gains up to +5 horsepower and +8 lbs. x ft. of torque, as measured on our in-house dyno. Mild Sound: This system includes a high-flow stainless steel muffler and dual resonated mid-pipe, producing a powerful sound and unleashing better performance, without any freeway drone. The muffler is powder-coated with a high temperature metallic black finish, providing corrosion resistance for long lasting good looks. 304 Stainless Steel Construction: This system is constructed of durable mandrel-bent 2-1/2" to 3" 304 stainless steel tubing for maximum air flow, corrosion resistance, and strength. Simple Installation: This CAD-designed MACH Force-Xp Cat-Back exhaust system utilizes factory mounting locations and OE style bayonet hangers, providing stability and a hassle-free installation. Polished 304 SS Tip: This system includes an angled, double-walled, polished, 4-1/2" diameter tip with a laser-etched aFe POWER logo for a bold look. Fitment Note: This item will only fit models equipped with single factory exhaust.