I personally wouldnt go a rebuilt hiflowed ct26 version. Its too limiting. Theres a high chance youll want more.
I'd go with an ecu upgrade first. Your old std ecu is hardly optimal and its only guessing if your running more than 12psi. If it knew you were running more, it'd engage safe mode.
The good thing with that turbo kit, is the tial ss housings have the same fitting pattern, so you could easily fit a gt30 series turbo with tial housing and it'll all bolt/vband straight up.