This may be a counter intuitive question.
I have a 2008 Ninja250 with a stainless steel Yoshi exhaust (I bought it used from Burnaby Kawi and it came that way). As I do a lot of city riding, I am finding that it is noisy (even through my helmut).
I know the adage that "loud pipes saves lives", but anyway of plugging or making it not so noisy? Talk about noise pollution when riding in downtown Vancouver! Not to mention the strain on my ears?
I thought of replacing it with stock exhausts, but this would be counter productive since, the Yoshi exhaust adds value to the bike when I sell it and it isn't really worth it since the stock exhausts costs almost as much as the Yoshi!