A couple weeks ago, I started my car up and it had a very rough idle and there was some smoke (white/blue) coming out of my exhaust. I never had a problem with exhaust smoke so I knew something was wrong. I popped the hood and noticed that the turbo was also smoking at the point where the turbine housing connects to the exhaust and downpipe. I thought maybe the seals were done, so I replaced the turbo nd it is now smoking more and the same amount of smoke is coming from the exhaust. Does anyone know what this could be from? I know it could be bhg, warped head, or something like that but I havent bought a leakdown tester yet and Im hoping that its something related to the turbo. Thanks