I agree with 90dpscoupe the install is pretty easy.I did however use a new 3 core FMS rad. the brakets for the fan did not fit so good. I had to make two new ones(no big deal).
I also use the switch under the hood. I tried to mount one in the car. I started the fan and the switch melted in about four seconds. If you do this do not get a little cheap plastic swtich. You will need a couple of amp metal one.
I really like this fan! I'm not sure about how much HP it freed up thought.
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