Interesting way to go.Thanks for passing it on. I am not convinced the controllers are the way to go either but I find them easily secured from Jegs and Summit racing. The optimum for me would be a digital readout controller that I could adjust to exactly the temperature I want from inside the car.

I had to remove the shroud for proper install the but no trimming was necessary either. The fan I chose covers about 80-85% of the area available within the shroud. Anything over 70% is fine and I selected a fan with high CFM to be sure I had significant excess cooling capability.

I agree a big plus is all the space it frees up to easily get to stuff on the front of the engine.

I installed the same controller this time in hopes the failure was a fluke. That way I could use the existing wiring. I may learn it was not a wise thing to do but the adjusting dial on the two had very different resistance so my judgment or lack thereof is that the first one was defective.

Using electric fans for me goes back many many years and many different applications It has always been a worthwhile investment. I even go back to when flex fans were very popular. The blades flattened out at higher RPMs for less drag on the engine. Haven't checked I bet they still sell them. Offered far better cooling at an idle and were like nothing was there when you put the pedal to the metal.

All my applications I have have been on engines that were modded. Now as before an electric fan verses a mechanical fan stands up tall to my cost/benefit formula.

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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas