By the way, as benny mentioned, you may have a boost cut at 18psi. However, may be lower because you have 450cc injectors as stock as opposed to the 510cc's of the manual and the 14b as opposed to the big 16. So it may come in earlier, I really am not sure. But you'll know it when you feel it bro.
Yea I will only be running 15psi max as i have not done the fuel pump yet, i am actually a bit iffy about even running that much on the stock pump. Currently i am running 10psi.