So whats involved in changing the fuel cap with the guage in it? Been looking at another set with the LED lights in it but wasnt sure whats involved in changing them over

Changed mine on the Fatboy to the flushfit with LED fuel gauge. You need to remove the wires from the connecteor so that you can pull the old guage and cable through the tank. You then insert the new wires through the tank then into the existing connector. Probably a ten minute job.

I want those on sporties.... *sigh*