Originally Posted by LowSlowNeon

You'll never hit 120 in a neon that is auto. Not likely anyway, at least if its mostly stock. And yes, from what I understand it does mess up your speedometer reading. There isn't really any reason to need to go that fast anyway unless you either A.) have some serious power and trap that high at the track, B.) race on a course and can actually get going that fast or more likely C.) drive that fast on the street most likely trying to beat a honda. As for how to do it, I don't know, I just saw it on the other site. I don't feel like searching for it, but if you search over there you should be able to find it.