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Nothing kills cars faster than overheating due to plastic failure on critical systems. The stock expansion tank is a time bomb in your E46 M3.
Moroso offers a quality alternative made with the high standards that you would expect from a manufacturer that has been a staple in the racing world for decades.

PRODUCT FEATURES:

-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
-The Moroso radiator cap mounts to a billet aluminum neck that will not strip out like plastic threaded necks
-Included is a Moroso 2bar 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

MADE IN THE USA

Estimated Volumetric Shipping Weight : 10.00 Kg