Stock 2jzgte Max Bhp

[Leeky]

How much BHP can i get out of a stock UK spec 2JZGTE?

Im planning on going above 450bhp, possible 500bhp. And im hoping all i will need to do is turn the boost up once i've had the Turbos reworked to Stage3.

Any ideas? I assume i will also have to upgrade the Intercooler to cope with the heat from the Turbos but apart from these two things (as well as induction kit, exhaust and decat) is there anything else i will need to do?

Thanks

[Karma Supra]

Might have to look at upgrading the fueling too mate... make sure she doesn't lean out!!!!!!