Magnaflow Conv DF 2003 ML350 3.7L Underbody

If your check engine light is on and you suspect a catalytic converter issue on your 2003-2005 Mercedes-Benz ML350, this direct-fit replacement from Magnaflow is a solid choice. It's designed to get your exhaust system flowing correctly again and meet federal emissions standards, helping you pass inspection and keep that warning light off.

Magnaflow builds this converter with free-flowing, mandrel-bent tubing, which means it won't restrict exhaust flow like a clogged factory unit might. The tubing and the converter body are made from 16-gauge 409 stainless steel, giving it good resistance to corrosion and a long service life. They use 3D scanning during development to ensure the shape and mounting points match the original equipment precisely, so it fits right without any cutting or welding required. The single laser fusion weld is designed to prevent leaks, and the compact design helps with thermal efficiency.

This converter is built to meet or exceed EPA emissions requirements for OBDII federally registered vehicles. It comes with a Torca clamp and other necessary hardware to make installation straightforward, so you can get your ML350 back on the road with confidence.