That's one hell of a power gain from a stock engine when they tested the pulleys. Not too bad for a gain overall with the 3 parts, going from 129 to into the 150's with only puleys, intake and an exhaust. So I'm definatly going with a pulley set, I dont give a shit about power loss from my alternator since I dont have a banger system in it anyway, all that shit does is attract broke people anyway. So out of the companies...which should I go for for a complete set of all 4?
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