Add more power and sound to your Challenger with this MACH Force - Xp cat - back system. Dual 3 mandrel - bent, MIG welded, 304 stainless steel tubing with x - pipe and crossover balance tube keeps exhaust flowing smoothly and evenly for power gains you can feel and hear. This system utilizes spherical clamps to retain the factory tips for a stock appearance. Dual stainless steel, high flow mufflers finished in high temp powder coating deliver an aggressive, performance exhaust note.