Stock coolant expansion tanks are prone to failure after years of constant temperature variations

An aluminum weld base mounting flange is furnished with each unit

crafted from A380 aluminum

Application intended for: E90 M3

and engineering

CSF High-Performance Oil Cooler, BMW E30 Crank Stock coolant expansion tanks areThe BMW E30 oil cooler has been reinvented in a bolt on OEM style design that features all the latest cooling technology (also can fit vehicles with M20 engine swaps). CSF's new technology & featured packed E30 oil cooler is a perfect solution for the growing BMW restoration market. The E30 has become a great platform for engine swaps of all kinds, from S54 BMW motors dropped into the engine bay, all the way to LS engine swaps, everything has been