Seller notes

BMW N54, N55 and S55 engine oil cooler thermostat bypass valve. These BMW turbo engines have a known issue of very high running temperature with very high oil temperature. Changing original oil thermostat to our oil thermostat diverter valve will solve this problem . It will take oil slightly longer to warm up that is why we recommended it for hotter climate daily driven and a must for any tracked/raced N54/N55/S55. Cheap and very efficient solution. Installation takes up to 5 minutes and can be...

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