NO, not from just a pulley kit. E.V.O.S.P.O.R.T. claim a 6-8 HP gain with their UD pulley kit and combined with a chip upgrade from either SpeedTuning USA or Powerchip the total HP gain would be 20+ HP.Gorilla Beast - 4/16/2005 2:27 AM
Pulleys giving 20 HP gain on a naturally aspirated car??
Is this really true?