E39 M5 and E52 Z8 Discussion
the metal one - part 7? - NO -
RealOEM.com BMW E39 M5 Waterpump - Thermostat
it's an immediate comparison, i'll keep updating it indefinitely. based on earlier in the day when it was in the low 60s Fahrenheit i could get temp to fall bellow 79C at will playing with the RPMs or coasting - i...