Cobb BMW 3-Series Cat-Back Exhaust

COBB Tuning is well-known for making parts that help BMW owners get more out of their cars, and this cat-back exhaust system for your 335i is no exception. If you're looking to change the sound and feel of your 335i's engine, this system is designed to give you a more aggressive exhaust note and potentially free up a bit of power. It replaces the factory muffler and piping from the catalytic converter back, giving your car a distinct voice that lets people know it means business.

This cat-back exhaust is constructed from 3-inch diameter, mandrel-bent 304 stainless steel tubing. Mandrel bending means the pipe keeps its full diameter through the bends, which helps exhaust gases flow more freely than crush-bent pipes. The 304 stainless steel is chosen for its strength and resistance to corrosion, so it should hold up well over time, even in harsh conditions. The system includes a dual-muffler design that COBB says balances tone and resonance, aiming for a deep sound without excessive drone inside the cabin at cruising speeds. It also features polished tips that give a clean, finished look under the rear bumper.

When installing this system, you'll be replacing the factory exhaust from the mid-pipe back. It's designed as a direct bolt-on replacement, meaning no welding or cutting is typically required, making the installation process more straightforward. You'll want to ensure you have the necessary tools and potentially a helper, as exhaust components can be heavy and awkward to maneuver. The result is a well-built exhaust system that not only sounds better but also looks great, enhancing the overall driving experience of your 335i.