I currently own a 2006 Mustang GT, auto trans. No current mods. I was wondering how the udp would affect the performance of the alternator, ac, waterpump and etc? Will their be any noise or vibration problems? Do I really want to underdrive the waterpump? Will underdriving the alternator affect my lights, maybe dimming or my radio volume? For a daily driven car, is installing udp really worth it? How much horse power increase could I expect?