sounds like you have a pretty sweet street set up to me man i bet boost comes on nice and early but even with a flowed t25 theres not much point reving to 9k you say stock internals (10.4:1 comp b16a2) have you done any head work? 9k sounds way high for stock b16a head with stock single exhaust springs but to the tuner.

If you want more power dont go higher on boost much 10psi with stock rods and rod bolts is a good limit think more flow.