That would sound real funny. I can't imagine the drone that'd put off.
What about the catalytic converter?? Of course many of us have 'dropped a screwdriver' in CCs, but in some cases their still there visibly and have little to no probs getting thru emissions. Side pipes would be difficult with a cat.
Lastly, I wonder how much heat they throw off. I know the Vipers with the side pipes warm up the floor up to the windshield pillars.