Quote Originally Posted by Dfinkelsteinmd View Post
The Cobras are definitely louder at all speeds w/o the baffles so I just wear ear plugs, which is a good idea in general. I also swapped out my windscreen for the super small opaque one so there is more wind noise around the helmet which the ear plugs also cut significantly.
Try wearing a different helmet and see if noise changes...it doesn't make sense to me but mine is quieter with a cheap half helmet than a new Arai XC 3/4 helmet. Maybe has something to do with reduced wind noise with better helmet, so louder exhaust sound???