aFe MACH Force-Xp 2.5in 409SS Axle-Back Hi-Tuck Exhaust System 18-20 Jeep Wrangler (JL) V6 3.6LIf you want proven performance gains, more ground clearance and sound from your Jeep JL 3. 6L 2 or 4 door, this Mach Force XP cat back exhaust system is what you need. 2 1 2" mandrel bent 409 stainless steel tubing and 14" high flow muffler improves exhaust flow for increased horsepower and torque. In house dyno testing resulted in gains of up to +9 horsepower and +8 lbs. x ft. of torque and delivers a noticeable exhaust tone. The Hi Tuck designed