So correct me if I'm wrong but as it stands the upper limits to the head unit at 14psi in this application is good for 550whp with the proper pulley. Meaning that if one would want to go even higher it would have to be via drop in lower compression pistons and rods.
Its safe to say that the Stage 2 kit is a beast, a user can get up to 14psi and 550whp which is more than needed for the street. 550whp and 400tq is a dream come true for any Z owner.
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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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