And when you get a tune that adjusts boost, most tuners will start you off with 23psi. Which would be all you need with the mods you have. I highly suggest you upgrade your intake as well to compliment your turboback exhaust, or ATLEAST upgrade your air filter by getting rid of your air box and installing a cone such as K&N or HKS for starters.
06 GG Evo SE
I WANNA GO FAST