Dumping exhaust down under the car

Bad Sport said
I had mine that way for a while. The only drawback was if you get into a dusty area it blows dust up all over.

Other than that, no issues with exhaust smell here.

I have 3 1/2" with turn downs, I have never smelled the exhaust , but mine blows out pretty hard and fast . ??????? 1100 idle rpm.