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I need to replace the thermostat in my 1989 E30 325i, that I will use as a daily driver and the occasional track day.

What version is good for street and track use (71C, 75C, 80C)?

Thanks.
 

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D'oh, You Kids!
1984 633CSi, 1985 635CSi, 1985 325e, 1987 325is, 1993 325is, 1995 318is, 1995 M3, 2003 F150
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The stock one (80°C). There is no advantage, and several disadvantages to using a lower-than-recommended temperature thermostat.
 
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