The 2005 Pontiac GTO is yet another in a long line of high-performance American vehicles. Like the GTOs of old, these newer models are full of horsepower and style. As such, you'll want to get the most from your investment. Even performance models such as the GTO will run cooler and have a more complete evacuation of the combustion chambers with the addition of an exhaust system specifically tuned to decrease backflow pressure and increase fuel efficiency. Every Borla exhaust system kit is designed to precisely manage power losses and exhaust velocity while looking and sounding great. You will see a significant difference in performance including increased fuel efficiency and acceleration. Borla exhaust systems are specially designed with all stainless steel tubing and fittings for extreme durability, as well as all the hardware you'll need for a quick and easy installation. Borla is so sure of their kits, they come standard with a million mile warranty. You'll immediately notice the difference -- responsiveness will increase as cabin noise decreases due to the perfectly tuned muffler. Just as the Pontiac GTO is a legendary name among muscle cars, Borla is a legendary name in exhaust systems, specializing in solutions that turn heads with the distinctive sound of high performance. We know you desire quality technical support while looking at reliable auto parts. For our valued customers, we built an always-open sales assistance bureau to support you with your questions. If you can find a better price, let us know - we will meet or beat any price advertised elsewhere.