I have a 98 GS and i just recently put AEM Underdrive pulleys on...at first the belt popped off at high RPM and it showed the battery that it was not charging and that i was running right from the battery...took it to my garage and they put autolock or something and tightened it up alot...now its on there good, however last night i noticed the power windows lagging, then the gauges and clock fading and then...yea you guessed died...i got no battery indication that the battery wasnt getting a charge so now i dont know if the alternator went...

is there any performance alternator i can get for my car or am i going to have to replace the performance pulleys back to stock...or could i possibly just replace the alternator pulley?

Thanks in advance.