hey guys just swapped over to a UPR O/R X-pipe with the MIL's and this code popped up after 350 miles of driving it with the set-up, the codes reads P0430 Catalyst System Efficiency below Limit - Bank No 2.? is my O2 sensor shot? there are no leaks in the exhaust??? doesnt make any sense since i used to have the same setup years ago and nothing popped up hopefully someone can help!!! thanks