Pack some punch with F350 Throttle Body Spacers. Throttle Body Spacers increase the gap between your air intake and engine block. Fill the bed with style after replacing F350 Throttle Body Spacers. Air is added to the combustion cycle more efficiently with Throttle Body Spacers. Bulk up with new improves with F350 Throttle Body Spacers. Throttle Body Spacers add horsepower. Get the added benefit of better mpg with a Throttle Body Spacer.