With the increase in power that you will get from your RSX performance chip, you may be inclined to really put the pedal to the metal. A new RSX power chip is going to make your car faster and surprisingly more fuel efficient. This is all down to how the chip makes its power, and the adjustability that it offers the driver. A new RSX power performance chip will give you more power than the stock chip. This is because a new chip will re-map the ECU and tell the engine how to function. With the performance comes fuel economy too. A new RSX ECU chip will come with a controller that can be switched to a power or economy setting. This allows you to change up your engine to allow for more power when you are at the track or for better fuel mileage on your way home.