I have a 2012 street glide and i was told if i went with a true duals and i dont change the air cleaner that i dont have to take to harley and have it reprogrammed?
That is true. Even if you do change the ac you don't have to take it to Harley. For less money you can get a tuner and install it yourself. Do some research for tuners.
Your bike is a finely tuned beast, thanks to EPA emissions regulations. If you changed the entire exhaust on a carb bike you would rejet it. If you change the entire exhaust on your lovely new EFI bike, get it retuned! Your EFI is not designed to allow you to make changes, quite the opposite - it is designed to keep your bike EPA compliant. I personally would get my modified SG retuned!