sportsterxlh1200

Hi I am going to pick up a 2016 883 with A blown motor and wanted to convert it to a 1200cc What do I need to do with the ECU to make it work with new motor and accept any alarm/ security issues? Thanks in advance

Hello, I'm actually hoping to get info and I guess for lack of a better term approval on a harley sportster that I'm looking at buying this weekend. I'm a first time Harley buyer (cruiser for that fact) I've always owned crotch rockets before (Suzuki/Ducati). So I know very little about HD. I...