I was going to put mine on myself, but ended up taking it to the HD dealer because the post that is suppose to replace the factory “shaft” for the turn signal needed to be drilled out. I don’t have the stuff to do it right, plus I didn’t have the stuff to do the wiring, so I let them do it…
Check your bike and see where the turn signal is. If its in the last hole then either you or the dealer will just have to snip the wires, add the new signal post (after it is drilled out) and rewire each signal… As chops said, if your signal is on the 2nd to the last hole they will have to drill out the fender.
Here’s a few pics for you to see what it looks like… (don’t mind the dust, I haven’t been able to wash it because of the weather

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