i have been doing reaserch on computer chips for my car at first i was like wow it looks like a substantial increase in power but then after i looked at some responses regarding these the more it swayed my decision, from what it looks, you can only notice a difference with an automatic tranny because it changes the set fuel and shift curve, and you woulnd not notice any difference in a manual, and as far as a high increas in power i heard the you would be luck to get 5 more horses from doing this which would leave me with a 300-400 dollar paperweight. i am trying to find a high increase in power in the amount of around 400 bucks but thats alot of money to spend just to find out that well it didnt work........