Relive the glory days with upgraded Bonneville Throttle Body Spacers. Throttle Body Spacers increase the gap between your air intake and engine block. Bonneville Throttle Body Spacers will have people craning their necks to see your ride. Air is added to the combustion cycle more efficiently with Throttle Body Spacers. Enhance your car with Bonneville Throttle Body Spacers. Throttle Body Spacers add horsepower. Get the added benefit of better mpg with a Throttle Body Spacer.