Moroso Coolant Expansion Tank BMW E46 M3 01-06

Direct bolt-in replacement to stock 2 piece plastic tank
Fabricated Aluminum for strength, factory tanks fail after repeated high heat situations & age
No cutting of factory hoses is required and accepts the factory clip-on hose
Included is a Moroso Part No. 63324 racing radiator cap that operates in the same pressure range as the factory cap
The Moroso radiator cap mounts to a billet aluminum neck that will not strip out like plastic threaded necks
Easy to read slight level is included
This aluminum tank can be polished, chromed, powder coated or left as-is for a race look