Magnaflow Conv DF 04-05 BMW 530i 3.0L Front

If you're driving a 2004 or 2005 BMW 525i or 530i and need to replace your catalytic converter, this direct-fit unit from Magnaflow is a solid option. It's designed specifically to keep your check engine light off and ensure your exhaust emissions meet strict California Air Resource Board (CARB) requirements, making it legal for use in California and other CARB-restricted states.

This converter is built with free-flowing, mandrel-bent tubing and uses highly corrosion-resistant stainless steel for the body and 16-gauge tubing, which means it's made to last. Magnaflow uses advanced 3D scanning during their design process to ensure this converter fits just like the original equipment. The compact, low-mass design helps with thermal efficiency, and a single laser fusion weld greatly reduces the chance of leaks, especially since they replicate the OE spun body design. Installation is made simpler because it's a direct-fit part, meaning no cutting or welding is needed, and it comes with the necessary gaskets and hardware to avoid reusing old, corroded factory parts.

This Magnaflow catalytic converter is a direct replacement for OE part number 18 40 7 523 904. It's designed to meet or exceed CARB requirements, so you can be confident in its compliance and performance for your specific BMW model.