The MagnaFlow 2015 - 2017 Ford Mustang Competition Series Cat - Back Performance Exhaust System brings an aggressive, attention - grabbing edge to the deep resonant exhaust note we're so well known for. This Ford Mustang cat - back exhaust kit is designed to enhance your 5.0L 2015 - 2017 Ford Mustang with dyno - proven performance made possible thanks to fast - flowing mandrel bent 3in. diameter piping that passes 2 Straight - Through mufflers ending in a Dual Split Rear exit with 4.5in. Black Coated Welded - On Double Wall Angle Cut Folded Edge tips featuring a sporty black powder - coated finish. The direct - fit design allows for an easy, do - it - yourself installation process. Exhaust system 19254 is engineered to make your Ford Mustang's engine produce Moderate interior and Aggressive exterior sound levels, befitting its competition - oriented design. 19254 is made of 100 durable and corrosion - resistant stainless steel and produced using CNC precision robotic manufacturing, all backed by MagnaFlow's 1 - year limited finish warranty and limited lifetime construction warranty. Please check to ensure compliance with local noise regulations.