This MagnaFlow exhaust system is perfect for those who want to enhance their 2003 - 2006 Toyota Corolla's performance and sound. Whether you're cruising on the highway or showing off at a car meet, this exhaust will make your car stand out. It's ideal for car enthusiasts who like to do DIY installations. The main piping is 2.25 inches in diameter, and it has a single straight passenger - side rear exit with 3 - inch polished tips.