This exhaust system is perfect for BMW M240i owners from 2017 to 2021 who want to boost their vehicle's performance and make it stand out. Whether you're driving on city streets or taking it for a spin on the highway, this exhaust will enhance your driving experience. It's made of T304 stainless steel, which is durable and easy to maintain. The 3 - inch axle back dual rear exit design with carbon fiber tips not only looks great but also helps with exhaust flow, giving your engine more power.