I am now hearing a slight whistle sound after letting off on the throttle. Under excelleration and constant speed there is no sound. It is a high pitched by very slight whistle sound. I can really hear it now since the interior had sound deadening installed.
I think I tracked it down to the part in the attachment. With a mechanics scope touching the metal ring it is more prominant.
What is this part and how difficult to replace? It looks like there is a pipe coming off the back that could make it more difficult to replace.
Thanks