| E46 M3 Motorsport Thermostat 55 Degree C |
 E4 6 M 3 Thermostat 55C (Also fits Euro E3 6 M 3 engine) A Genuine BMW part this thermostat opens at a much lower temperature than stock to keep your S5 4 engine (or Euro S5 0/S5 2 engine) running cooler in race applications. Price: 245.50 |