Of course they sell ads we don't support. They even sell to competing sites. Actually, they don't have much say in which ads appear.
Those things are just snake oil and the only people that benefit from it are the people selling it. All it is doing is telling the computer that the car is colder than it really is so the mixture is richer. That will not do anything but kill your fuel mileage and it's not even legal to install on a US vehicle, although nobody enforces it.
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Thursday, May 3rd, 2012 AT 8:00 PM