Polished Aluminum Air Intake Released for 2004 & 2005 4.6L Ford F-150 Pickup

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If you own a 2004 or 2005 Ford F-150 pickup with a 4.6L engine you already know it's one of the best selling vehicles in America. K&N Engineering has met that marketing demand by releasing a new 77-Series intake system, part number 77-2557KP.
K&N 77-2557KP Air Intake Kit for the 2004, 2005 Ford F150
77-2557KP Air Intake Kit for the 2004, 2005 Ford F150

77-2557KP Air Intake Installed in a Ford F-150
77-2557KP Air Intake Installed in a Ford F-150

K&N tests have shown a horsepower gain of 9.31 @ 4724 RPM for this intake. You may especially feel this added power and torque when accelerating and when towing a load with this truck and air intake.

The F-150's engine compartment size allowed our engineers to utilize a large 6 inch filter.  This also allowed a bigger heat shield.  K&N also added a big radius filter adaptor that helps maximize power and allows air to flow with little restriction.

We usually test at least 3 vehicles for each intake system, but this time we used 5 Ford 150s. K&N Engineers made sure the design provided maximum power to meet consumer demands. There is also a polished aluminum finish on this 77-Series intake system.

The filters on our air intake kits are washable and reusable. It takes about 90 minutes or less to install this kit and the lifetime K&N air filter performs for up to 100,000 miles before service is required..

Find a K&N product for your vehicle using the K&N application search then use the K&N dealer search to find a K&N dealer near you.



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K&N Engineering, Inc. of Riverside, California, is the inventor and leading innovator of High Flow Technology and Lifetime air filters for automotive applications. K&N has been manufacturing our exclusive line of Lifetime air filters in Riverside California for more than 35 years. We continue to lead the way in pioneering new and innovative technologies designed to allow your car, truck, boat, or motorcycle to get all the air it needs to perform its very best. K&N Engineering, now a truly global company with offices in the U.K. and the Netherlands, continues to exist as a family owned business with an enthusiast mindset and a direct connection with motor sports that carries over throughout all levels of management and manufacturing. Today, K&N exists as both the sales and brand leader for performance filters, and maintains a stocking catalogue of over 3,500 part numbers, including an extensive line of factory replacement drop-in filters, performance air intake systems, and High-Flow oil filters. For more information about K&N Filters, please contact K&N Engineering, Inc., P.O. Box 1329, Riverside, CA 92502-1329, (800) 213-4182 for a dealer near you, (800) 858-3333 for technical service/questions, (951) 826-4001 Fax, e-mail tech@knfilters.com, or visit www.knfilters.com.

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