The Generation II FIPK is K&N's ultimate performance product, designed to increase power by as much as 10%. Most FIPK's are street legal in all 50 US states and come with a 10 Year/ Million Mile Limited Warranty. K&N intake systems replace your vehicle's restrictive factory air filter and air intake housing. K&N intakes are designed to dramatically reduce intake restriction as they smooth and straighten air flow.

This allows your vehicle's engine to inhale a larger volume of air than the OEM air filter assembly. More air means more usable power and acceleration throughout the engine's RPM range. The filters on these kits are washable and reusable. Most of our intake kits are relatively easy to install using tools commonly available.

K&N 57-2556 fits the following:

• 2008 LINCOLN MARK LT 5.4L V8 F/I - All
• 2008 FORD F150 5.4L V8 F/I - All
• 2007 LINCOLN MARK LT 5.4L V8 F/I - All
• 2007 FORD F150 5.4L V8 F/I - All
• 2006 LINCOLN MARK LT 5.4L V8 F/I - All
• 2006 FORD F150 5.4L V8 F/I - All
• 2005 FORD F150 5.4L V8 F/I - All
• 2005 FORD EXPEDITION 5.4L V8 F/I - All
• 2004 FORD F150 5.4L V8 F/I - All