AWE Cat Back exhaust Track Diamond Black Tips 2015 2019 WRX & STi Corsa Performance Single 4.0" Polished Pro Series Tip Kit (Clamps Corsa Performance Single 4.5" Black PVD Pro Series Tip Kit (Clamps AWE Track Edition Exhaust for VA GV WRX STI Sedan Diamond Black. Corsa Performacne produces one of the nicest exhaust on the market. With unique features and superb quality this exhaust is sure to enhance the performance and look of your new WRX or STI. Corsa Performance exhausts are very unique, they have developed technology that will totally change the way you look at a performance exhaust system. Gone are the days of having to settle for the common drone from most aftermarket exhaust systems. With their patented RSC (Reflective Sound Cancellation) Technology they are able to filter out the undesirable low frequencies that cause drone, the Corsa Performance exhaust will retain a robust growl at idle as well as high performance exhaust note under acceleration. Corsa will also be offering the exhaust system with Black Pro Series tips for the ultimate stealth look! These new Black Pro Series Tips underwent thorough testing to guarantee they met the high quality standards we have established for all CORSA Performance products. Using Physical Vapor Deposition Technology, the same technology often used to harden, coat and enhance the durability tools, CORSAs Pro Series tips are infused with black film providing a deep, brilliant, reflective, black finish that wont chip, flake, or peel and further resists corrosion. PVD is a vacuum coating process of vaporizing a solid metal to a plasma of atoms or molecules, resulting in a vapor that is deposited as a high performance coating on our Pro Series Tips. All Corsa Performance exhausts are manufactured in USA right in Berea, OH.