How would a set of SE off a 2010 fit on a 2011 Electra Glide? would anything be req other than just installing?
More fuel would not hurt, but the bike should run OK TFI Tuner Information - Harley Davidson Community
Whenever using stock HD parts are in question as for fitting you can always go to the website and choose your year and model and it will tell the exact models and years the parts will fit. This link is for the exhaust selection for your 2011 EG and if you choose the slip ons you are considering it should say if they will work or not. Exhaust | Harley-Davidson USA