Originally Posted By Dab of oppo
As daft as it sounds try the exhaust heat shield domed screws. It could be the heat shields rattling if they have come loose.


This is good. Bring Loktite to the party. 5 on each side and all willing to leave the building!

What's your mileage? Who cares. Is it practical? See #1. What happens when it rains? You get wet.