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Discussion Starter · #1 ·
im looking to get my rb25 tuned. right now I'm running 7psi and I want to up the boost and I'm wondering how much power/boost i can run with the existing mods, my goal is adleast 400whp
-GT2530R turbo
-apexi power fc ecu
-front mount intercooler
-kyorad radiator
-550cc injectors
-255lph fuel pump
-act clutch
-spitfire coils
-arp head studs
-brand new oem style head gasket
 

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Stock internals are good for about 400+hp but your injectors will be maxxing around 500 too. Much above this level you need a forged rebuild etc. But this kind of stuff is well covered so just search the forums.
 
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