Originally Posted by Siendly22
I have my full exhaust for a year. I have X pipe before, yesterday I replace it to An H pipe. Car runs okay after I install H pipe. But this morning in less than 30 mins car acting weird the exhaust sounds different and the 'service light soon ' pops up and there's a vibration. I'm thinking maybe the o2 sensor is the prblem. But I'm not sure. Car is in good condition all in all. It just happen when I change my X pipe to H pipe Yesterday.
I would say the exhaust sounds different do to the x to h swap , they produce different tones, the vibration may be the h pipe is loose, when I did my exhaust with LT's my o2 light came on and my car never ran rough , it did run a bit rich but never rough, I drove it like that for awhile till I bought a tuner, I f you don't have a tuner you should take it to get it scanned as suggested above , it may be a different issue other than a o2