This 2 in. diameter Borla Cat-Back system is a direct bolt-on part for ease of installation. Specifically tuned for the 2.0L engine in the Corolla Sedan our S-Type Cat-Back delivers a sportier sound and a more exciting driving experience without any drone. It features dual 3.15 in. round polished T-304 stainless steel exhaust tips that properly fill out the rear bumper cutout. Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer numerical control (CNC) manufacturing ensures an accurate fit. As you can expect from Borla, the exhaust is constructed using T-304 stainless steel and comes with a Million-Mile Warranty. Give your Corolla the sound it deserves, bolt on a Borla.