Date registered: Apr 2008
Vehicle: 2000 MB S500 and a 2009 Kia Optima
Location: Kingwood (Houston) Texas USA
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Unless you use the car on the track exclusively, I can't even imagine why you would want to bypass the fan. The first time you get stuck in a Summer traffic jam, you have other things on your mind, and you forget to "flip the switch". Doesn't take long for an overheat to destroy an engine...
Have you put the car on a Dyno to see how much BHP you are actually losing when the fan kicks on? With an electric fan, it should be absolutely minimal...