Alright guys after you finish laughing because I still run a UTEC..Here is my issue. I was replacing my stock manifolds with some headers when I noticed the manifold on bank 2 was white in color inside compared the the bank one that was normal burning color. I am running the Powerlab single turbo kit that uses one OEM 02 sensor on the bank 1 side manifold and none on the bank 2 side manifold. The OEM O2 sensor that is to go on that manifold is on the turbo downpipe, which I am assuming is used for the tuning of the engine. As far as I know the car was working fine for three years now. It did start to misfire a bit on idle some time back but not a great deal to really check it out. Now I know why it was doing this...Any ideas on why its leaning out on that side only? BTW there are no visible fuel leaks.