aFe Power 49-36902 - 17-21 Alfa Romeo Giulia L4-2.0L (t) Mach Force-Xp 2in to 2-1/2in 304SS Axle-Back ExhaustMACH Force-Xp 2 IN to 2-1/2 IN Stainless Steel Axle-Back Exhaust System Alfa Romeo Giulia 17-25 L4-2.0L (t)This system produced gains of up to +10 HP and +12 lbs. x Ft. TQ., as measured on our in-house dyno. This axle-back exhaust system is constructed of 3 IN - 2-1/2 IN mandrel-bent 304 stainless steel tubing for maximum strength and durability. This system produces an aggressive sound unleashing all available horsepower and torque. Utilizing factory style hangers this system is a direct bolt-on system, which requires no cutting or modifications for a hassle-free installation. A mitered merge collector is used to decrease turbulence and increase exhaust velocity resulting in increased horsepower, torque and improved throttle response. Utilizing state-of-the-art computer-aided design technology, this exhaust system is designed for custom, high tolerance factory fitment. 100% MIG-Welded for race-proven strength and durability. Up to +10 HP and +12 lbs. x Ft. TQ. Constructed from 3 IN - 2-1/2 IN Mandrel-Bent 304 Stainless Steel Tubing Utilizes Factory Style Hangers for a Secure Fit 100% MIG-Welded for Strength and Durability Exhaust Type: Axle-Back Exit Location: Passenger and Driver Side Horse Power Increase: 10 Muffler Included: No System Finish: Natural System Material: 304 Stainless Steel Tip Included: No Torque Increase: 12 Tubing Diameter: 3 to 2-1/2