Sleeper Civic EX runs the Greddy kit on stock internals with RC 440s and a VAFC. He put down a 13.9 @ 100mph at 10psi on 17" rims.
Apexi has a better turbo in their kit (ball bearing), but the Greddy is nothing to look down on.
Regardless of which kit you decide to go with, I recommend getting a Hondata. My car is proof that the Hondata setup beats the fawk out of the VAFC. I gained 30 whp in just tuning the Hondata. :boink:
I can get Greddy, Hondata, and Apexi so PM me if you need some pricing.