The Mufflers would fit. Even if they were to short all you would have to do is weld on an extention piece. The exhaust system as a whole will not fit because the AV6 has dual exhaust that goes to single and then comes back out to dual. The S2000 is a 4cyl so it has one exhaust that goes into a y-pipe at the end.

I do agree about the S2000's mufflers looking better than our AV6's! Change em out!!