Compatible with internal or external wastegates

pump heat is fast becoming an issue in fuel systems

and racing thermostat

When choosing an MLS gasket for your BMW

Mishimoto Thermostat, BMW M52TU / M54 430i Compatible with internal or externalMishimoto has developed a direct fit replacement thermostat for the BMW M52, M54, and M56 engines. This Mishimoto thermostat is the ideal replacement for your failed stock thermostat. The Mishimoto thermostat comes pre installed in a durable OEM quality housing and fits many BMWs including E46, E39, and E85 chassis. Like all Mishimoto cooling products, this BMW M52, M54, and M56 thermostat is backed by the Mishimoto Lifetime Warranty. Applications: