This cat-back exhaust system is constructed of 3" - 2-1/2" mandrel-bent brushed finished 304 stainless steel tubing for maximum strength and durability. This system features a high-flow 304 stainless steel muffler, producing a powerful sound. Finishing off this exhaust system are quad 3-1/2" diameter carbon fiber 304 stainless steel clamp-on exhaust tips. The tips features an aFe POWER logo for a unique style. This system produces a powerful 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. This cat-back exhaust system incorporates a factory style exhaust valves which use the factory exhaust valve motors (not included). The valves help regulate, direct and control the flow of exhaust gases by opening, closing, or partially obstructing passageways depending on throttle position for maximum performance. 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% TIG-Welded for race-proven strength and durability.. MACH Force-Xp 3 IN to 2-1/2 IN Stainless Steel Cat-Back Exhaust System Carbon BMW Z4 M40i (G29) 19-25 L6-3.0L (t) B58. aFe 19-24 BMW Z4 M40i (G29) B58 Turbo MACH Force-Xp 3in to 2-1/2in SS CB Exhaust System - Carbon. Constructed from 3" - 2-1/2" Mandrel-Bent Brushed Finished 304 Stainless Steel Tubing. MACH Force-Xp 3 IN to 2-1/2 IN Stainless Steel Cat-Back Exhaust System Carbon. Quad 3-1/2" Diameter Carbon Fiber 304 Stainless Steel Clamp-On Exhaust Tips. Includes Factory Style Exhaust Valve (Using Factory Motor, Not Included). Utilizes Factory Style Hangers for a Secure Fit. 100% TIG-Welded for Strength and Durability. MACH Force-Xp Cat-Back Exhaust System. Cat-Back Exhaust

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