We have noted more M54 engine failures due to overheating than on any of BMW's previous engines. We believe this is due to a combination of factors including the electronic thermostat and high operating temperatures. Our M54 Competition Thermostat Plate Kit is designed to return the selection of normal engine operating temperature to the owner/builder and improve engine longevity by replacing the failure prone electronically-controlled thermostat with a mechanical unit. [See Full Description Below]

This aluminum shroud kit includes an offset 14 inch fan for additional additional cooling. It can be added to our E46 M3 Aluminum Radiator Type 11 or the factory radiator.

Radiators and shroud kits are built to order. Lead-time varies.

This aluminum shroud kit includes a 16 inch fan for additional additional cooling. It can be added to our E46 M3 Aluminum Radiator Type 11 or the factory radiator.

Radiators and shroud kits are built to order. Lead-time varies.

This is our second offering for non-M Series e46 cars. The E46 Aluminum Radiator is suited for every other e46 3 series model--automatic or manual. [See Full Description Below]

Radiators and shroud kits are built to order. Lead-time varies.

Built for the demands of motosport racing. The E46 M3 Aluminum Radiator is a direct replacement for the factory unit. [See Full Description Below]

Radiators and shroud kits are built to order. Lead-time varies.

The E46 M3 Competition Cooling Kit with Offset Fan is the ulimate cooling solution for this generation M3. Designed as a solution for super-charged cars, it features an aluminum shroud with integrated offset fan and our aluminum radiator. [See Full Description Below]

Radiators and shroud kits are built to order. Lead-time varies.

The E46 M3 Competition Cooling Kit is the ulimate cooling solution for this generation M3 featuring an aluminum shroud with integrated fan and our aluminum radiator. [See Full Description Below]

Radiators and shroud kits are built to order. Lead-time varies.

The E46 Cooling Kit is the ulimate cooling solution for this generation 3 series featuring an aluminum shroud with integrated fan, aluminum expansion tank and our aluminum radiator. [See Full Description Below]

Radiators and shroud kits are built to order. Lead-time varies.