aFe MACHForce XP Exhausts Cat-Back Hi-Tuck RB SS 16 Toyota Tacoma V6-3.5LaFe POWER MACH Force Xp cat back exhaust system is constructed out of 2. 5" 100% MIG welded, mandrel bent, stainless steel tubing for maximum flow. The smooth transition bends and free flow stainless steel muffler allow for low turbulence, increasing horsepower, torque and improved throttle response. In testing, the cat back exhaust system resulted in gains up to +9 horsepower and +10 lbs. x ft. of torque, as measured on our in house dyno. Finishing