This morning I was getting my de-cat fitted and I was talking to my friend (the mechanic) he took something out of a Clio earlier in the week, I have never seen or heard anything about it before it was plugged into the daiagnostic plug. He gave me it and I have took a few photos. I don't want to just plug it in and try it as it may damage the ecu. It has a red button and a led ontop that's it. :S bit of info would be appreciated! Thanks