Im trying to find a good exhaust system. Hyundai Genesis Coupe 2.0T?
What year, make, and model? Some old trucks don't have catalytic converters and they just have a straight exhaust pipe or no exhaust pipe at all, if yours is like that then you don't have to worry about it. But if your car is suppose to have a catalytic converter (usually 1980's and newer), then you must have it on, you don't need the exhaust end after the catalytic converter. and about how much is that to get it fixed?. Including parts and labor, I would say over $180.
The stock one sounds best. If you mess with it will start to sound all riced out.
I would suggest a free flow exhaust system by wildcat.