aFe is proud to introduce our Mach Force - Xp cat - back exhaust systems. In recent testing, this system produced 16 horsepower and 17 lbs. x ft. of torque on our in house dyno. This cat - back exhaust system utilizes 3in into 2 - 12in tubing with a clamp - on reduction tube to fit the stock connections. Remove them and combine with the aFe Power Twisted Steel down - pipes (PN 48 - 33017 - HC or 48 - 33017 - HN) for added flow and performance. This system incorporates dual, high - flow mufflers to improve performance across the power band while maintaining an aggressive sound. To finish off the exhaust, dual 4 diameter gloss black 304 stainless steel tips are included. This system includes hardware for a hassle - free installation.