K&N Performance Cold Air Intake System: Easy Installation, Engineered to Maximize Airflow, Boost Horsepower & Torque, 77-2556KP

The K&N Cold Air Intake Kit 77-2556KP is built to deliver high-performance gains for 2004–2008 Ford and Lincoln 5.4L V8 models, including the F-150, Lobo, Expedition, and Mark LT. Engineered for power, this system is dyno-tested to provide a guaranteed increase in horsepower and acceleration, with up to 50% more airflow than the factory intake. It improves throttle response and towing performance, while also giving your vehicle a deeper, more aggressive engine sound. Featuring a high-performance oiled synthetic air filter, it offers world-class protection from harmful contaminants and requires no cleaning for up to 100,000 miles, making it easy to maintain. Installation is quick and simple—bolt-on power in under an hour with basic hand tools and no ECU tuning required. Backed by K&N’s 10-Year/Million Mile Limited Warranty, this intake system is a reliable, long-lasting upgrade for your truck or SUV.

• K&N Cold Air Intake Kit: 2004-2008 Ford/Lincoln (F150, Lobo, Expedition, Mark LT) 5.4L V8, 77-2556KP
• Ultimate Longevity: 10-Year/Million Mile Limited Warranty protects for the life of your vehicle.
• Guaranteed Increase in Horsepower: Dyno-tested with up to 50% more airflow than restrictive factory box air filter and intake tube
• Better Towing: Improves acceleration and uphill performance when towing by improving throttle response.
• Improved Engine Sound: Hear the power under the hood.
• World Class Protection: Pushing the limits of engine protection by protecting your engine from harmful contaminants
• Easy Maintenance: No filter cleaning required for up to 100,000 miles
• Easy to Install: Bolt-on power in less than an hour with basic hand tools. K&N air intake systems are one of the easiest ways to guarantee an increase in horsepower.  
• Dyno Tested: Dyno-tested for a guaranteed increase in horsepower and acceleration with no ECU tune required
• High Quality