Welcome to the Forum. Nice car, my second favorite color! Add your location in your profile so we know what city you are in.

It sounds like you have Sprint Booster, adjustable. They are removable if you don't like it. Try it without it. It plugs in at the throttle pedal position sensor. All it does really is tell the ECU that your foot is heavier on the gas pedal than you really are.

You may like it better without the device until you get used to the car.

Search Sprint Booster for more info.

James