The MagnaFlow Ford Mustang Race Series 15177 doesn’t leave any performance on the table with a race-ready, light weight, dyno-proven design ready to help your 5.8L 2013-2014 Ford Mustang take on any pretenders, whether on the track or the street. Exhaust kit 15177 is engineered to produce our powerful, resonant signature exhaust note at VeryAggressive exterior and Aggressive interior sound levels with an axle-back layout that replaces your vehicle’s exhaust components from near the rear axle on back. Please check to ensure compliance with local noise regulations. This Ford Mustang exhaust kit features fast-flowing mandrel bent 3in. diameter main piping that ends in a Quad Split Rear exit with 4in. Black Coated Welded-Double Wall-Angle Cut-Folded Edge tips. Extensive 3D scanning during development and the use of advanced CNC precision robotic manufacturing techniques ensures that 15177’s direct-fit design fits so perfectly that you can easily install the system yourself. The durable, corrosion resistant stainless-steel construction of exhaust system 15177 is backed by MagnaFlow’s 1-year finish warranty and limited lifetime warranty.