Mark, The AC cycling has to do with the amount of warmer air moving over the evaporator coil inside the car, The Fan Fix and the Fan Zilla affect the cooling fans over the radiator for cooling the water and the condensor coil outside. John hervey www.specialTauto.com << Does the Fanzilla affect the fan vs. AC cycling? Or would this still be a good modification to do even if you have a Fanzilla installed? Mark N VIN 6820 >>