For me it really doesnt matter if i could have sent my stock pulleys to asp and saved $400 bux. I never had any intention of giving up the option of putting them back on if and when the day comes.The reason the asp pulley and needswings cai is so popular here right now is because it is backed up by facts and first hand info like how to threads, time slips, and dyno pulls. Everything showed great results and i hope that threads like these never stop.