Many have asked lately what the ignition module does and what the "computer" plug is for. Your 05 and later bikes comes with a remote located ignition module unlike the cam chest version of the older models. With software you can get from Thunderheart you can plug into this and real the history of your bike. Hours, RPM's and more. Here is just an example of what my read out was from a few years ago and readout was downloaded when bike was back at the factory. This is a pic of the Adj ignition module but looks similar to the stock un-adjustable model we all have.