Installed Pypes non cat x-pipe with Borla Stingers. Got rear o2 and front o2 codes. Put MIL eliminators on, they didn't work. Bought SCT X3 tuner, SCT asked for list of mods and made a tune. I plugged in the tuner tuned the car and it got rid of my rear o2 codes. Now im fighting the front o2. Read bank1 sensor1 lean. I decided to switch the front two around(moving that sensor to bank2). Code come back this time as bank2. Replaced sensor with new one. Car runs exactly the same but no code yet. When it reads i will update.

Any advice is greatly appreciated. Almost at the point of selling the car