aFe Power Gas Cat-Back Exhaust System for BMW Z4 M Roadster (E85) S54 Engine 2006 - 2008

Unleash power and sound while improving the looks on your Z4 M Coupe with this MACH Force-Xp 2-1/2" 304 stainless steel cat back system. The larger diameter, mandrel bent tubing along with high-flow, metallic black powder coated stainless steel mufflers are less restricting for maximum flow, optimum sound and long lasting good looks. 100% hand TIG-welded for proven quality and durability, this MACH Force-Xp system is finished off with quad 3" black coated, stainless steel exhaust tips with laser-etched aFe POWER logos to give your E86 a track-prepped, custom look.Performance Gains: In testing, the cat-back exhaust system resulted in gains up to +7 horsepower and +15 lbs. x ft. of torque, as measured on our in-house dyno.Quad 3" Diameter Black Exhaust Tips: Quad, rear-exit 3" diameter, angle cut, black stainless steel exhaust tips with an aFe POWER logo laser-etched on the top for a custom look.High-Flow Performance Muffler: Incorporating less-restricting dual, high-flow, metallic black 304 stainless steel mufflers into the exhaust system to eliminate exhaust drone, maintaining a smooth, unique sound.2-1/2" 304 Stainless Steel Tubing: Less restrictive than stock exhaust allows maximum flow and low turbulence; increasing torque, horsepower and improved throttle response.Perfect Fit: OE-style bayonet hangers are used to maintain a stable pipe location during high vibration and high heat conditions. The Bayonet tip holds the hanger bushing in place for an OE style fit that does not change with time.Hassle-Free Installation: This exhaust system is designed to be a true bolt on system with no cutting or modifications required. Quality hardware and clamps are included for a hassle-free installation.Emissions Disclaimer: This product does not require a CARB EO# All aFe exhaust systems are engineered and manufactured in our Corona, California manufacturing facility.