Achieve your goals with Lucerne Throttle Body Spacers. Throttle Body Spacers increase the gap between your air intake and engine block. Be independent with Lucerne Throttle Body Spacers. Air is added to the combustion cycle more efficiently with Throttle Body Spacers. Modify your Buick with Lucerne Throttle Body Spacers. Throttle Body Spacers add horsepower. Get the added benefit of better mpg with a Throttle Body Spacer.