I have a 2011 Softail Deluxe with factory exhaust. I bought an Arlen Ness stage I air kit and Vance and Hines longshots. Will the bike's system automatically map itself or is it necessary to have it done in a shop?

 

It will to a degree but will still be way to lean. IMHO you are way better off with a tuner.

 

Some will say yes & some will say no...Add your stuff & go get the tune up. You'll be happy ya did, however your EFI system will get ya home & it'll even get ya there,That's the beauty of EFI, but you'll have a sounder mind if ya do...