K&N Performance Cold Air Intake System: Easy Installation, Engineered to Maximize Airflow, Boost Horsepower & Torque, 57-2525-2

The K&N Cold Air Intake Kit 57-2525-2 is a high-performance upgrade designed for 1999–2004 Ford F-250 Super Duty, F-350 Super Duty, and Excursion 5.4L V8 models. Engineered to provide a guaranteed increase in horsepower and acceleration, this system is dyno-tested to deliver up to 50% more airflow than the restrictive factory intake system. It enhances throttle response and boosts towing and uphill performance, while giving your engine a deeper, more aggressive sound. The included reusable oiled synthetic air filter offers world-class protection from harmful contaminants and requires no cleaning for up to 100,000 miles. With a bolt-on design, installation takes less than an hour with basic hand tools and requires no ECU tuning. Backed by K&N’s 10-Year/Million Mile Limited Warranty, this intake kit is a durable, long-lasting solution for improved engine performance.

• K&N Cold Air Intake Kit: 1999-2004 Ford (F250 SuperDuty, F350 SuperDuty, Excursion) 5.4L V8,57-2525-2
• 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