Richards done a big response, so as another person who's been in your shoes already, heres what i did;
Trust front pipes
Cheap sh!t catback
Hi flow cat
Microtech (insert aftermarket ECU of choice here)
ARC airbox
Boost bleed valve
15psi
262rwkw....notice this is without cam gears. If i bought another stocker id do cam gears at the same time as the tune
Swapped the ARC box for a stock airbox with a nismo Stune filter and saw zero difference.
Thats more than enough power for the streets if you dont drive it often.