ok so I have this friend with a focus. he wants to put underdrive pulleys on his car but he's got two amps, a 1100 and a 1200 amp powering a dvd player, 2 twelves and 4 speakers. Underdrive pulleys aren't such a good idea for him are they? I know our cars can't handle them and figured every care would be basically the same regarding this matter, so should I tell him to forget about the pulleys?
Thanks guys
Thanks guys