Attention! This is not a product that would EVER be needed on a street car. It is a product for racecars, specifically boxer engine cars, able sustain +1.5Gs consistently. If you are unsure if you have a 'racecar' ask yourself some simple questions. Does my car have a true safety cage? Does my car run race slicks? Do I have a competition license? If you do not answer yes to all 3, this product would very likely be utterly useless for you.