3.5-Inch Cat-Back Exhaust System

The ATM 3.5-inch cat-back exhaust system is engineered to enhance the performance and sound of your BMW 335, 335IS, and 335XI. Featuring a substantial 3.5-inch diameter piping, this cat-back exhaust aims to improve exhaust flow, potentially leading to increased horsepower and a more aggressive exhaust note. The system is crafted for performance enthusiasts looking to upgrade their vehicle's exhaust system. It is important to note that this exhaust system **does not fit the E93 convertible model unless modified**. Ensure your vehicle is compatible before purchase to avoid fitment issues.