i'm going to order an underdrive pulley from RRM. my question is: has anyone who has this mod experienced their electrical components working shitty? i've heard more than a few people say that underdrive pulleys will hinder the use of your A/C and aftermarket sound systems. i've also heard that your headlights will be dimmer.
i have an aftermarket subwoofer and HIDs installed in my car, so if this is true it'll be a dealbreaker for me. any feedback on this?