ok, exhuast before the rear wheel is that ok?

Thats what i ment, cuase from factory, it comes out the side from the rear.

My bronco II has cats, and there staying in. They dont bother me. I need a new muffler, and was wondering if i could go by without one. Anyway, do you know if an after market muffler (such as magnaflow, etc) would be a problem?

Thanks