Quote Originally Posted by M4DDOG View Post
OK so got my new berklee muffler installed today and the noise is gone .

My old muffler must have been loose or something? Is this possible?
I reckon your stock muffler was moving on the soft stock mounts. Hard turn left = muffler "turns" right (inertia) = clunk.

Having done six different exhaust set ups so far (# 7 coming soon!) I can tell you that the stock 380 rear muffler rubber mounts are as soft as butter.