The TurboXS catback is a perfect complement to your 01-07WRX or STi. Once you have opened up the airway for your beast to breathe you have to improve the way to the exhaust gases escape. What better way to do so than with our stainless Steel 3 inch mandrel bent catback system? We had our engineers start from scratch on a new muffler specifically for the GD's that flows very well and does a great job of making the WRX sound it’s best. From start up to redline the unique tone matches the look of the WRX.