Hey bro, I just read your post on the boost issue. I live in Va Beach and I had my car (2012 GT500) tuned at Dynotuned Performance by Brent Hughes. I have the 2.5 and 90MM set up as well, the only diffence is I am running a JLT 123mm CAI. My stock gauge is reading 14lbs and the car dynoed 567hp and 560tq. I am not a gauge guru by any means but the moniter for the dyno also showed 14lbs (13.9) to be exact. I'm no expert at all but I'm wondering if it is a combination of your steeda CAI and your tune. I would give Bent a call 757-549-3966. He has been great to work with and I am very happy with the power and drivability of my car.
