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Hi all with the below mods what boost will i be safe running as a hi boost setting.

I am curently running low-boost = 10psi and hi-boost = 12psi

Can i up hi-boost to 14-15psi with the factory turbo with the below mods or should i leave it at 12psi

Factory turbo

HKS 3" exhaust From turbo + HKS Hiper muffler

HKS super flow pod filter + Cold air intake

HKS EVC 5 boost controller

Apexi SAFC-II + Dyno tune

Greddy Type R blow off valve

Autobarn88 600x300x76 intercooler

Sard Fuel pressure reg @ 40psi

Walbro 500hp Fuel pump

NGK Iridum Spark plugs at .8mm gap

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well i have had mine as high at 15.9 for short burst in the scramble boost for 5 seconds, but i wouldn't recomend it. I have had my tunner reach 14psi no probs on a safe tune, but this is only recomended for short power runs. The R33 turbo has a max efficiency of 12.x psi, can't remember exact figures, after that the increase in air flow is not as large as say goign form 7 to 9 psi.

It is possible. I have run my car wiht higher boost settign for 2 months now, no issues, turbo looks and spins as if it were brand new.

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