Banks Ram-Air Superiority. 5.4L V-8 engine only. Banks opens up your truck's breathing with a flowbench-developed and dyno-proven Ram-Air Intake System with a High-Ram intake plenum that outflows the stock setup by up to 63 percent. Ram-Air's lifetime filter has a huge outlet - deep filter pleats that maximize flow - a wide-open, streamlined design - and a complete air filter housing that draws in cool, under-vehicle air. Banks delivers cooler, denser air to the engine for greater power.
Ram-Air Cold-Air Intake System, Dry Filter for use with 2004-2008 Ford 5.4L, F-150