O just went through the same problems. Replaced the turbo after a blocked catt blew it. Then a p0011 code that blew my motor. Just replaced the motor and turbo, got new ocv, and a Invidia catted dp, and bp'd the tmic. It runs beautiful now and sounds amazing. I don't see anything the matter with a catted dp. Especially if you have emissions test in your state that needs to be passed.