If it still has the origional 2.2L inline 4 cylinder it should produce roughly 195 horsepower. Besides a chip you can also look into modifying the intake and exhaust, this may not be cheap but its much less than modifying your engine for nitrous, it also maintains the Honda reliabilty you would lose if you added NOS or a turbo. A cold air intake will run you about $300 while adding a cat-back exhaust will be about $500. It would be best to do these at the same time as it does not make sense to force more air into the engine if it has nowhere to go because of the restrictions caused by the stock exhaust. These could add anywhere up to 50 hp depending on the quality. The Prelude is an outstanding car, I loved the models they used to make with the 4 wheel steering, too bad they discontinued them.
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