I was about to purchase a set of pulleys, however after having a discussion about it with Alex at Performance Motorsports he simply told me that while it is a cheap way to get a few HP in the long run it will mess up your engine harmonics. I took his word on in, I know he's seen more VQ motors than I have.
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2009 Carbon Fiber/Red 370z aka Trish: Sports Package, Meisterschaft full catback, Fast Intentions Longtube Headers, Injen Long Tube Intakes, UpRev Tune: Sold 
2008 Lotus Exige S Club Racer aka Bella, always leaves me smiling
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