[Kloogy]

Some plankton brain idiot rear ended my car while I was waiting at a red light. He dented my rear bumper ith his front license plate bolts. I was thinking of replacing the rear with an M tech bumper. What are my options as far as a dual exhaust setup ? I haven't seen anything on here for a 328i that gives me rear duals. I'm debating whether it would be a good idea, now that his insurance company will be paying me for a new rear . Thanks for your input guys.