yes you can put one in.... you have to get the kit for replacement of the square lamps to the h4 kit... then buy a h4 hid kit.... i had the h4 kit in mine and was going to get the hids so i know but then i decided to buy the EVO..... email www.turbotrix.com if you want the kit he can get the h4 kit to remove the square lamp...then you will have to order the hid kit for that...