Hey guys, does anyone have one of these? It is a chip that is basically a transistor that goes on your air temperature sensor and is suppose to fake it out. Meaning telling the engine that you are getting ALOT colder air than you are really getting. I have one on my car now, but I really do not know if it is doing anything, except turning on the check engine light. I am going to the track on Tuesday and trying a few runs with it and a few without it. But I was just curious if you guys believe in these things?