57-2568) that is street legal in 50 states for the 2006 Ford Expedition with 5.4 liter V8 engine. K&N dynamometer testing shows a 13.62 horsepower gain at 3872 rpm.
2006 Ford Expedition with K&N air intake 57-2568 installed
Dyno chart for 2006 Ford Expedition with a 5.4 liter V8 engine
K&N removed the stock intake tube, replaced it with a aerodynamic K&N intake tube and relocated the throttle body to create more power and performance.
The 57-2568 also features a large chrome top K&N air filter. The air filter, RF-1020, rests behind a powder coated steel heat shield. This helps isolate it from the rest of the engine compartment. Cooler outside air is directed toward the K&N air filter from the factory fresh air duct. The K&N air intake system replaces the restrictive stock air filter. Cooler air enters the engine for an immediate power gain.
The high flow technology invented by K&N and made in the USA provides the best balance of airflow and filtration. The RF-1020 is also washable and reusable and can go up to 100,000 miles before cleaning is necessary.
The 57-2568 can be easily installed in 90 minutes or less and comes with the K&N Million Mile Limited Warranty.
Find K&N products for your vehicle using the K&N application search then use the K&N dealer search to find a K&N dealer in your part of the world.