aFe Power 49-46024-P MACH Force-Xp 2-1/2" Stainless Steel Cat-Back Exhaust System with Polished Tip In house testing produced a max gain of +7 horsepower and +14 ft. lbs. of torque, Includes a high-flow muffler Constructed from 2-1/2" 100% MIG-welded mandrel-bent, stainless steel tubing A direct bolt-on system which requires no cutting or drilling and includes all necessary hardware for a hassle-free installation Includes a high luster polished stainless steel, rolled slash cut, Resonated tip for enhanced sound output and aggressive style Manufactured and Assembled in the USA