Airaid Poweraid 1" Throttle Body Spacers for 97-04 F-150 & Expedition 4.6L

The Poweraid throttle body spacer was designed to improve power, torque, and fuel efficiency. The dyno-proven "Helix Bore" of the Poweraid throttle body spacers causes a spinning action of the incoming air-charge as it passes through the throttle body. This enhances the airflow to the combustion chamber, producing a super-atomized mixture, which creates huge gains in midrange power and overall efficiency. The 1" red, anodized spacer comes with all the necessary hardware to install in it. Applications: 1997-2003 Ford F-150 4.6L 1997-2004 Ford Expedition 4.6L