I'm looking into alternatives to my PMS computer and the Haltech really shines above the rest in its price range. If I were to get this system, I can install it myself without any trouble. But, I don't know when I would be able to get it to a dyno to fine tune it. How close will the maps provided by RP get me? From what I understand, they can give you maps based on your mods, and they of course have lots of experience with the system. Here are my mods:

PFS intake and intercooler
PFS downpipe, midpipe w/resonator, and catback
Efini y-pipe
Clipped stock turbos
Cosmo fuel pump

 

even the dyno only gets you close. you will still need to fine tune it on the road or track to be perfect. most tuners can get the car started and this will allow you to drive and tune it.