I have a used O2 sensor with a working electronic CEL eliminator installed on it. Would like to get it out of my garage. It has been on my car for 5K or so. Just screw it into the cat and plug it into the factory plug and you are ready to go. This will work on any car that needs a A117E6007F O2 sensor which should be any Elise/Exige. First thread is damaged, but I have filed the thread it screws in just fine and it won't affect the sealing or strength. Best offer takes it.