Replace your faulty BMW OE catalytic converter P/N: 18307836634 with aFe POWER's direct-fit catalytic converter. 100% hand MIG-welded, mandrel-bent, 409 stainless steel tubing for strength and durability, this affordable, direct-fit converter is EPA compliant and utilizes factory mounting locations, OE style flanges and includes quality hardware for a quick, bolt-on install.

Stainless Steel Construction:
This direct-fit catalytic converter replacement is constructed of 100% hand MIG-welded, mandrel-bent, 409 stainless steel tubing for strength and durability.

EPA Compliant Catalytic Converter:
This product is an EPA Compliant catalytic converter.

Factory Mounting Locations
This direct-fit catalytic converter replacement mounts directly to OE mounting locations and includes high quality hardware for a hassle-free installation.

Emissions Disclaimer:
This product is EPA compliant, not for sale or use on vehicles certified for the state of California. Consult your state or local authority for any additional clarification. Replacement of catalytic converters (if equipped) is allowed only under the following conditions: 1) if the vehicle is missing a converter; 2) if a state or local inspection program has determined the existing converter has been lead-poisoned or damaged or otherwise needs replacement; or 3) if the vehicle is more than five (5) years old or has more than 50,000 miles and a legitimate need for replacement has been established and documented. This product only fits those vehicles as listed in the application table.

aFe POWER exhaust systems are engineered and manufactured in our Corona, California manufacturing facility.