Hi there. Is this an AccessPORT version 1 (b&w screen) or version 2 (color screen)? If version 2, do you have any logs? Is this an 04 WRX? What is an exact list of your mods? If this is a custom map, what does you tuner say the peak boost target is? What is your altitude? What gear are you in and at what RPM are you starting your wide open throttle run in order to measure your peak boost? Have you had a pressure test or smoke test of the intake tract to look for boost leaks?