Relatively easy. I did have to relocate an inductive sensor (I think that's what it is) that the battery ground cable goes through that Dink had not come across in the other models and wasn't in the instructions. He did take my phone call and we discussed the problem and the fix. I sent him pictures so he can modify the instructions. (I'll post one here) Overall start to finish 2 1/2 hours including unplanned work which added about a half hour or so. Anyone else could probably do it in an hour. I am a little more methodical than most which adds time.