The thermostats at left is the old defective thermostat. It comes with the car and made by Wahler.
At right is a new replacement, after market BMW thermostat from us, imported from Germany and, it is made by Wahler also.
The two thermostat are the same. The only different is; The replacement thermostat does not have the BMW brand mark on, and it makes significant different in price.
We can’t possibly get everything imported from Germany but most common BMW replacement parts, yes we have our own source.
We will try to source, the best quality parts, on the best available price for your fine automobile.
So now you just have to decide what you’re going to do with the money you saved by paying less for the same parts?