Keep your Buick going with Regal Throttle Body Spacers. Throttle Body Spacers increase the gap between your air intake and engine block. Bring a new feel to your car with Regal Throttle Body Spacers. Air is added to the combustion cycle more efficiently with Throttle Body Spacers. Longevity of your vehicle can be enhanced with Regal Throttle Body Spacers. Throttle Body Spacers add horsepower. Get the added benefit of better mpg with a Throttle Body Spacer.