I have a local "indy" that can do the upgrade (big bore 95", 203 cams, se cam plate w/ hydraulic tensioners plus fuel controller). Will this get me close to a 103 twin cam performance? What I'm looking for is a small boost in performance, ie: a little more torque (not having to down shift) climbing small hills so common around here. The "Indy shop" said many customers sold their bikes (after upgrades) and bought "103's". Not sure I understand your question about "riding up on the cam in stock configuration". The bike and cams are stock. If at all possible I would like to stay on the quiet side with slip-ons, any suggestions that you feel are good? Thanks for your time and experience.
What I mean is are you short shifting or winding bike out to almost red line to get the most out of the O.E. cams. As to noise any slip on mufflers and air cleaner are going to increase noise while increasing performance. I had Rush 1.75 inch baffles on my stock 2008 EG with O.E. air filter and after a couple of years I removed mufflers and reinstalled stock and could not be happier. Try winding the rev out farther before shifting for if you are having a compliant of trying to alleviate down shifting it seems that you may not be riding as aggressive as you possible can which is why the downshifting concern. As to Indy saying that most of the 103 upgrades done are traded in on factory 103, that would be a cause of concern for me with that Indy.
