Description The MMR Performance Low Oil Temperature Thermostat is an affordable and effective upgrade designed to help control and maintain ideal oil temperatures on BMW N54 and N55 engines. Under high load or when power is increased, standard oil thermostats can allow temperatures to rise above optimal levels, reducing lubrication efficiency and potentially accelerating wear. Installing this low-temp thermostat helps keep oil temperatures between approximately 90 °C and 110 °C for improved engine longevity and performance — especially in track-driven or high-power applications.This upgrade is machined from high-grade aluminium and anodised for durability, and is a simple direct fit into the original oil thermostat housing without requiring complex modifications.
