Kyo Cat back exhaust The Kyo cat back exhaust is designed to free the Toyota engine and maximize horsepower. It incorporates straight flow design to minimize back pressure and maximize power. 6 inch canister gives the exhaust an impressive sound blast with deep tone. The manufacturing process adheres to the highest standard and quality control. It is the perfect balance between power and smoothness. 2 1/2" inch inlet 4 1/2" inch outlet Removalbe double layer silencer Direct bolt on $299.00 Toyota Corolla 93-97 Toyota Corolla 03-05 R spec +$30.00