I've had bad luck with the police fan, probaly high mileage, but mine was loud, powerrobbing, and finally broke off, and puncured my radiator, i will only use an electric fan for now on, the night it broke i was down the street thank god....but it felt like it gained 10-15 hp
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90 lx coupe: 175k miles, steeda water pump pully, hurst shifter, Mac cold air fenderwell, accel supercoil, ADS chip, aluminum D/S, Black magic fan, 3.27grs.
Best time: 13.9116(on 225/60/15 firehawks)
Best mph: 98.17
Best 60': 1.9607
next mods: subframes, mac h-pipe