Three reasons why I am not a nitrous fan:

1. It's not always on.
2. You have to refill the bottle.
3. The bottle can't be in the car for any sort of sanctioned autocross or road racing event.

Anyway back to the chip.

Even if it would work in your car (which it doesn't) it won't give you any more power. This is the general rule when dealing with generic chips. People will tell you they got it and it made their car faster but they are wrong. The chip, at best, quickens up the throttle response which is why people say that it feels faster.