i disagree with underdrive pulleys.
i had one on my previous car and my stereo would shut off often if i wasn't driving, even with a capacitor my sub would drain my electrical system severely.
also, felt like the car was goin' to stall often due to the oversized pulley underdriving the alternator and not replenishing the battery's juice.
i'd also like to hear a review from someone that actually does have the AEM
pulley not some guy that has read reviews from AEM
and just goes by theoretical knowledge.