I have a 1996 SRAD 750 with stock exhaust. My exhaust can is in poor shape. I'm considering changing to an aftermarket bolt on exhaust can (not a full exhaust system). Question: will I need to rejet if installing an aftermarket can ? I'm not worried about a minor loss in performance, but I am worried about having the bike run too lean because of the more open exhaust can. Having said that, Yoshimura says that rejetting is not necessary when installing their RS-3 bolt on exhaust. Any thoughts?