Airaid Ford 5.4L Throttle Body Spacer 400-531
2004-2013 Ford F-150, F-250, Expedition 5.4L
The AIRAID 400-531 fits some Ford Expedition, Ford F150, Ford F150 SVT Raptor, Ford F250 Super Duty, Ford F350 Super Duty, Lincoln Mark LT, and Lincoln Navigator models.
The POWERAID Throttle Body Spacer is designed to enhance off-idle torque from 800 rpm to approximately 3,000 rpm. The spacer utilizes it’s unique, patented Helix Bore design to spin the incoming air charge as it passes through the throttle body spacer. The spinning air action boosts the velocity of the incoming air and contributes to better atomization of the air/fuel mixture as the air charge enters the combustion chamber. The end result is more part-throttle torque and improved mid-range power.