The aFe MACHForce XP Cat - Back Exhaust is perfect for Volkswagen Passat TDI owners from 2012 to 2014 who want to enhance their driving experience. Whether you're on a daily commute or hitting the open road, this exhaust system will give your car a boost. It's made of 4 - inch 409 stainless steel tubing and has a 24 - inch long muffler. The system uses factory mounting locations, making it easy to install on your vehicle.