This Flowmaster® Flow FX® cat-back exhaust system is manufactured using durable 409 stainless steel throughout and features 2.5-inch mandrel bent tubing for better exhaust gas flow. Dual Flow FX series mufflers are used for an aggressive to moderate exhaust note and increased performance. This system exits with dual 4.0-inch black ceramic coated stainless steel tips for added style and a custom look. Max gains of 11 hp and 8 lb.ft. of torque at the rear wheels over stock. The system uses all the existing factory hanger locations and includes installation instructions and all necessary hardware for an easy installation that you can do at home. Backed by Flowmaster's Lifetime Limited Warranty.