...an on-board Dynojet Power Commander111, PC111? Is it worth the cost? Is it better then having the dealer do a Stage1 / Stage11?

I guess I'm just not real sure what it does and how it works.

Thanks for in advance for your replies and help.

My "06" SB is going in the shop for a 95" big bore kit, new pipes and a wide rear tire on Monday and was just wondering if the Dynojet Power Commander111 was something that will help the bike, make it run better / last longer.