[olddog]

Another thing I took issue with was their method of raising the fan temp control points. They want you to strap a resistor onto your sending unit, so you don't have to modify the ECU. Sure that will raise the temp that the fan comes on and off, but it also lies to the ECU on what the engine temp is. The fuel and timing maps take engine temp into account. It also will most likely make your gauge read lower than actual. This could get you into trouble on some newer cars and they are happy to lead you right over that cliff to make a sale. That whole issue bothered me a bit.