The Agency Power Mitsubishi Evolution 8 & 9 exhaust stainless steel exhaust system features a brilliant titantium muffler with a titanium 4.5 inch tip etched with the Agency Power logo. T304 stainless steel 3 inch piping TIG welded with 1/2 inch thick flanges ensures great exhaust flow and lasting quality. The system includes the bung for the factory O2 sensor as well. This system includes all the necessary hardware and gaskets for bolt-on installation to your factory cat. The exhaust angles at an exit for a sporty look. The race sound of the exhaust will not drone inside the car but give you that quality tone you desire.