Anyone have issues with underdrive pulleys and a large stereo system? I have 1 kicker comp 12 and I'm contemplating a set, but don't want to end up killing alternators and such. Unorthodox says theirs work with up to 600w rms systems and I think I'm around 150-200 rms(been awhile since I've looked at the specs on my setup lol). Just looking for anyones real world experiences with pulleys and stereo, thanks.

 

most underdrive pully kits just underdrive the crank and overdrive the assesories to compensate.