Personally I would go with the BP turbo kit when Sasha releases it. They have proven themselves on the 350z's. The NA route is going to be really expensive with minor gains. Cost to performance, FI is going to be the better bet.
The boosted performance kit is a single twin scroll turbo kit that is very DIY friendly. Maintenance would be very easy if something should break. Not to mention Sasha is on top of his customer service game.
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2009 370z touring w/sports package
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