sound difference between catted and offroad.

catted sounds MUCH more mellow and muffled, not as much raw throatiness...but its still way better than a stock h pipe. an off road x will be quite loud and raspy...but you will also get some exhaust fume smell inside the car when the airflow around the car is right, such as when coming to a stop...there are pluses and minuses to each it just depends on what your priorities are