Most of the claims are overblown, you should notice a difference in third of fourth as stated above, but 10HP in 215HP car is hard to "FEEL". The best reason to chip one is to expand the RPM range 0-6500 instead of 0-6200 and to take the speed limiter off the top end. If we can ever get a set of headers or a turbo or supercharger the chip will help those as well.