The issue surrounding the need for aftermarket springs is an unknown factor. Also it is important to find out what tuning solution Jun used. If these cams require Jun's own tuning program exclusively I'd pass.
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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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