This has probably happened before but...my front o2 sensor was throwing a code so I took it in and the tech blamed it on the j-bends on my hi-flow cat saying that the front and rear sensors work together and the rear was throwing off the front....I knew the tech was wrong but I immediately called Tony (F.I.) just to confirm and he said that was a load of bull****
Funny thing is my warranty would have covered the o2 sensor and everyone would have gotten paid but I guess not?
