【FITMENT】Compatible with 90-93 Acura Integra 【Quality Construction】Made of High Quality T-304 Stainless Steel with Computerized Mandrel-Bends for Strength and Durability. TIG welded CNC machine flange for resistance against pressure and corrosion. 【Enhance Performence】Dyno proven to instantly increases 15 - 25 horsepower / low end torque. Aggressive deep and smooth tone while ensures smooth exhaust gas flow, increase engine output and efficiency. 【Muffler & Diameter】Piping Inlet Size: 2.5" OD; Major Piping Diameter: 2.5" OD; 4" OD Muffler Tip; Diagonally Cut Muffler Tip 【Design】The larger pipes, low-restriction mufflers, and tuned resonators of a well-designed performance exhaust system can make stunned effect on your vehicle: lower auto exhaust back pressure and a much better sound.