IF I REMOVE THE CATS BUT STILL HAVE THE O2 SENSORS STILL IN THE PIPE WILL I HAVE ANY PROBLEMS? WILL IT HURT MY POWER?I WANT TO REMOVE THEM BECAUSE I WANT SOUND AND THE TRUCK HAS 130,000 MILES ON IT SO THEY COULD BE GETTING CLOGGED? ANY HELP WOULD BE HELPFUL!

 

If you leave the o2's in the pipe you should be fine.