{"product_id":"k-n-57-2581-performance-cold-air-intake-kit-for-2011-2014-ford-f-150-5-0l-v8","title":"K\u0026N 57-2581 Performance Cold Air Intake Kit for 2011–2014 Ford F-150 5.0L V8","description":"A high-density polyethylene (HDPE) rotationally-molded tube helps increase the volume of airflow to your engine, and provides a guaranteed increase in horsepower and torque. These systems are paired with a washable, reusable High-Flow Air Filter featuring oiled cotton filter media. The oversized, conical design allows you to go up to 100,000 miles between filter services under normal highway driving conditions. A custom heat shield helps protect intake air from the high temperature of your engine bay, and the entire system can typically be installed in less than 90 minutes. Some intakes are not legal for sale or use on any pollution controlled motor vehicle in California. See the product specifications for CARB status on each part for a specific vehicle.\nK\u0026amp;N's roto-molded cold air intake systems are guaranteed to provide an increase in horsepower and torque, and are protected by the K\u0026amp;N No-Hassle Lifetime Limited Warranty.\nAssociated products: RC-5173DK Air Filter Wrap, RU-5173 Universal Clamp-On Air Filter, 99-5000 Filter Care Service Kit Aerosol\n\u003cul\u003e\n  \u003cli\u003eK\u0026amp;N Million Mile Limited Warranty\u003c\/li\u003e\n  \u003cli\u003eWill not void vehicle warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eImprove airflow to your 2011–2014 Ford F-150 5.0L V8 with the K\u0026amp;N 57-2581 Performance Cold Air Intake Kit. Its high-density polyethylene rotationally molded intake tube is designed to increase airflow volume to the engine, helping deliver gains in horsepower and torque while providing a durable, precisely engineered replacement for the factory intake system.\u003c\/p\u003e\u003cp\u003eThe system includes an oversized conical K\u0026amp;N High-Flow Air Filter with washable, reusable oiled-cotton filter media. Under normal highway driving conditions, the filter can typically go up to 100,000 miles between services. A custom heat shield helps reduce exposure to hot engine-bay air, supporting cooler, denser intake air and consistent performance. The kit is generally installable in less than 90 minutes using common hand tools.\u003c\/p\u003e\u003cp\u003eK\u0026amp;N Engineering backs the 57-2581 with a No-Hassle Million Mile Limited Warranty, and installation will not void the vehicle warranty. This intake is EPA compliant and carries California Air Resources Board Executive Order D-269-48 for applicable vehicle applications. Check local regulations and vehicle-specific emissions requirements before installation. Associated products include the RC-5173DK air filter wrap, RU-5173 universal clamp-on air filter, and 99-5000 filter care service kit aerosol.\u003c\/p\u003e\u003ch3\u003eBrief Description\u003c\/h3\u003e\u003cp\u003eA high-flow cold air intake system engineered for 2011–2014 Ford F-150 models equipped with the 5.0L V8 engine.\u003c\/p\u003e\u003ch3\u003eKey Product Specifications \u0026amp; Technical Data\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBrand: K\u0026amp;N Engineering\u003c\/li\u003e\n\u003cli\u003ePart Number: 57-2581\u003c\/li\u003e\n\u003cli\u003eProduct Type: Performance cold air intake kit\u003c\/li\u003e\n\u003cli\u003eVehicle Application: Ford F-150\u003c\/li\u003e\n\u003cli\u003eEngine Application: 5.0L V8\u003c\/li\u003e\n\u003cli\u003eFilter Type: Washable and reusable oiled-cotton conical filter\u003c\/li\u003e\n\u003cli\u003eIntake Tube Material: Rotationally molded high-density polyethylene\u003c\/li\u003e\n\u003cli\u003eEmissions Status: EPA compliant; CARB Executive Order D-269-48\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRotationally molded intake tube\u003c\/li\u003e\n\u003cli\u003eWashable, reusable high-flow air filter\u003c\/li\u003e\n\u003cli\u003eCustom heat shield\u003c\/li\u003e\n\u003cli\u003eInstallation hardware and components\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHigh-flow airflow design: Increases the volume of air supplied to the engine to support improved horsepower and torque.\u003c\/li\u003e\n\u003cli\u003eRotationally molded HDPE tube: Provides a durable, precisely formed intake path with smooth internal airflow characteristics.\u003c\/li\u003e\n\u003cli\u003eWashable, reusable air filter: Oiled-cotton filter media can be cleaned and reused, with service intervals of up to 100,000 miles under normal highway conditions.\u003c\/li\u003e\n\u003cli\u003eCustom heat shield: Helps protect incoming air from high engine-bay temperatures and supports consistent intake performance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitments:\u003cbr\u003e\n2011 Ford F-150 FX2\u003cbr\u003e\n2011 Ford F-150 FX4\u003cbr\u003e\n2011 Ford F-150 King Ranch\u003cbr\u003e\n2011 Ford F-150 Lariat\u003cbr\u003e\n2011 Ford F-150 Platinum\u003cbr\u003e\n2011 Ford F-150 STX\u003cbr\u003e\n2011 Ford F-150 XL\u003cbr\u003e\n2011 Ford F-150 XLT\u003cbr\u003e\n2012 Ford F-150 FX2\u003cbr\u003e\n2012 Ford F-150 FX4\u003cbr\u003e\n2012 Ford F-150 King Ranch\u003cbr\u003e\n2012 Ford F-150 Lariat\u003cbr\u003e\n2012 Ford F-150 Platinum\u003cbr\u003e\n2012 Ford F-150 STX\u003cbr\u003e\n2012 Ford F-150 XL\u003cbr\u003e\n2012 Ford F-150 XLT\u003cbr\u003e\n2013 Ford F-150 FX2\u003cbr\u003e\n2013 Ford F-150 FX4\u003cbr\u003e\n2013 Ford F-150 King Ranch\u003cbr\u003e\n2013 Ford F-150 Lariat\u003cbr\u003e\n2013 Ford F-150 Platinum\u003cbr\u003e\n2013 Ford F-150 STX\u003cbr\u003e\n2013 Ford F-150 XL\u003cbr\u003e\n2013 Ford F-150 XLT\u003cbr\u003e\n2014 Ford F-150 FX2\u003cbr\u003e\n2014 Ford F-150 FX4\u003cbr\u003e\n2014 Ford F-150 King Ranch\u003cbr\u003e\n2014 Ford F-150 Lariat\u003cbr\u003e\n2014 Ford F-150 Platinum\u003cbr\u003e\n2014 Ford F-150 STX\u003cbr\u003e\n2014 Ford F-150 XL\u003cbr\u003e\n2014 Ford F-150 XLT\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; 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