[WHITE_SVT_SNAKE]

I agree with blake, that was a very intuitive post. They are very useful tools and you only have to pay for them once... whereas a dyno cost you everytime... and if i'm not mistaken running at the track cost you too unless its on one of those team day deals or whatever... Eitherway if u do a lot of modding and u wanna test performance after every mod and don't wanna have to spend the money, go to the track, or go to the dyno this is a great tool... It has more features than I feel like explaining and they are all useful not to meantion very accurate... Anyway Pick one up if you have the means...