Error Code P219B
My car is 2012 V6 and has installed BBK LT with Catted Shorty X Pipe since March. 3 days ago I was driving to work when suddenly the CEL Light turned on, so I took my car to the dealership today and they told me that the error codes were p219b (Air/Fuel mixture issue bank 2), p0300 and p0316 (ignition misfire). The dealership told me the error codes were thrown due to the aftermarket parts, I am asumming that the fact that I am getting a wrong reading from the O2 sensor is making the engine run lean and therefore the misfire, is there anything I can do? Are my O2 sensors messed up? Or is this just due to the High Flow Cats and I need a Tune to fix this?