Based on what was said before regarding turbo sizing, I don't think they'll be able to achieve 500rwhp on a VHR engine. Also when you add labor, parts, fabbing and misc expenses I think it would put you close or over the cost of a complete solution. GTMs stage 1 kit is 7.5k and it comes with all you need with the potential of more power with better than OEM components.
More power to whoever wants to be unique and goes forth with a setup like this, I honestly dont think it's worth the trouble.
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2011 Twin Turbo PW nismo #113 - My Journal - My TT Build Thread
[ GTM GTX Stg2 TT || HKS EVC6 || Custom CarPC || F.I 3'' TDX CBE || SB 6puck clutch/ZSpeed CSC || BC BR Coilovers || SPC camber arms || Work VSS-X || Custom Headlights || PW:JDM CF Covers || Seibon CF Engine Cover ]
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