aFe Power 49 48079 Mach Force XP 3" 409 Stainless Hi Tuck Cat Back aFe Power MACH Force Xp 3 IN 304 Stainless Steel Cat Back Exhaust AFE POWER MACH Force Xp 3" 304 Stainless Steel Cat Back Exhaust System aFe MACHForce XP 4in Exhausts Cat Back SS with Polished Tips 14 17. Now your 2019 Ram 5. 7 HEMI can perform and sound as good as it looks with this MACH Force Xp cat back exhaust system from aFe. In house dyno testing produced gains of up to +22 horsepower and +26 lbs. x ft. torque for towing, track, and street performance. 3 mandrel bent, 409 stainless steel tubing and high flow muffler improve performance across the power band and delivers a deep, aggressive exhaust tone. Factory style bayonet hangers are used to maintain a stable pipe location during high vibration and high heat conditions for a secure fit. 100% MIG welded for strength, durability, and long lasting good looks. This system is finished with dual, 5 black stainless steel tips with aFe Power logo badging for a unique, custom appearance. No cutting or modifications required. Quality hardware and clamps are included for a hassle free installation. Features: In house dyno testing produced gains of up to +22 HP and +26 lbs. x ft. torque 3 mandrel bent 409 stainless steel tubing for improved performance 100% MIG welded for strength and durability High flow 409 stainless steel muffler reduces backpressure and provides a deep, tuned sound Dual rear exit 5" black stainless steel tips with aFe Power logo for a custom appearance Quality hardware and clamps for a hassle free install Note: Will only fit models equipped with factory dual exhaust system.