Mishimoto Aluminum Coolant Expansion Tank, BMW E36 1303508 They also traded out the

They also traded out the flat-panel filter for an oiled cone filter to maximize airflow into the system

and reduced risk of valve float

they typically fail when the plastic starts to age

This kit simply combines 20-0461 and 20-0508

allowing for enhanced power output and preventing combustion leaks at high RPMs

Mishimoto Aluminum Coolant Expansion Tank, BMW E36 1303508 They also traded out theAdd some additional reliability and engine bay styling with the Mishimoto BMW E36 Aluminum Coolant Expansion Tank. Stock coolant expansion tanks are prone to failure after years of constant temperature variations. The Mishimoto tank is constructed from durable, TIG welded aluminum for optimal durability and longevity. The engineers at Mishimoto have designed a CNC machined dipstick which doubles as a bleeder and allows for proper cold coolant levels.