As it says in the bible
"What is this Device? It is a resistor chip that gives out a constant reading of air temperature to your ECU.
Sorry, it isn't. It's a 40¢ resistor that lowers the voltage coming from the sensor. A chip is made of silicon and has many layers of circuitry laid out in it, and it requires a special plug - similar to the chip inside your PC or the ECU in the car.
Will my car accelerate faster with this electronic device? Yes! This is the whole point! It has been dyno proven that this device will add up to 20 HP to your vehicle!
Really? Because the dyno graphs on e-bay are so obviously faked that I'd believe an untrained 3-year-old could do a better job. I'd like to see actual proof of this from a reputable dyno shop.
Will this device damage my car? Absolutely not. Since the altered signal will always stay within the manufacturer's specifications, there is no way for your engine to get damaged in any way.
Yeah - not technically true. You are fooling the engine into thinking it has a cooler air charge, therefore the fueling will be altered beyond the manufacturers specification for the given air temperature, and that could damage your engine.
Like I've said above in this page - if this really worked, why wouldn't the car manufacturers simply re-map their ECUs to perform like this? Or add this resistor to their circuits themselves? Simple - because it does not work."
Do not do it!
