Powr-Flo Throttle Body Spacers are CNC-machined from billet aluminum and feature a bore engineered to increase velocity of airflow into intake manifold. This allows more air to reach combustion chamber for denser air charge and increase in fuel efficiency. The result is improved throttle response and power gains in mid-range and upper rpm operating ranges. Includes gaskets, hardware and instructions for a simple, bolt-on installation with no other vehicle modifications required.