As mentioned this is not “catted” and should not be billed as one. The fit and finish is good. I used it as a catback as I will have to pass emissions testing in two years. As a catback this exhaust has a terrible drone problem 2.5-4K and shook the car violently. I had to install a resonator to solve this problem another $100. My advice is if you want a cheap non-catted system this will work well with the glass pack resonator in place, but it is terrible as a catback. Save your money and buy a well engineered exhaust.