update, My dealership still sucks. They cannot diagnose the wastegates. even on OEM tune. they see the spark go from 16 degrees to -0- instantly at 5500 rpm, and do it REPEATEDLY, all while bucking the car and making horrible noises. no frigging codes the entire time.
now it has developed a starting issue. accessories come one, 'push to start' lights up. press the brake and hit start the car goes through the motions but the starter motor doesn't 'turn'.. no codes occur. if i stop it and do it again it tries to kill me by pushing the driver seat ALL the way up.. super weird.
starting to get really frustrated.