I think I read something a while back about an alternative to doing the full hole saw mod, but I cannot find it. Anyway, I think it states that you could drill a few holes in the backplate of the exhaust to get a little more sound, but did not need to re-jet the carbs. I am trying to stay away from re-jetting if possible. I also had someone tell me that you could drill a few holes in the underside or backside of the pipes (where they would not be seen) and achieve this too. Any thoughts or ideas on this? Any input is much appreciated.