The K&N 57-2603 is a 57 Series cold air intake for the 5.0L V8 in the Ford F-150. It pairs a roto-molded high-density polyethylene tube with a washable, reusable high-flow filter. The 57-series OEM air box intake systems include a washable, reusable High-Flow Air Filter paired with a CAD-designed high airflow intake tube. The manufacturer states the system is guaranteed to increase horsepower and torque, with an estimated torque gain of 10.4 lb-ft. Owners on user forums say plastic tubes hold less heat than aluminum designs, and the filter is rated for cleaning every 100,000 miles under normal highway driving conditions. Expect modest gains, though. Forum members report that the sound change is the most noticeable result, and many argue that a tune or exhaust work is needed for real power.
This kit suits F-150 owners who want a cleaner, lower-cost intake without giving up the factory airbox. A 2017 truck is the common question, and this is shown as applicable to a 2018-2020, with 5.0, according to one forum post. Installation is a realistic weekend project, and it can typically be installed in less than 60 minutes with only standard hand tools. Searches such as "2018 F-150 5.0 cold air intake," "57 series FIPK install," and "Coyote 5.0 roto-mold intake" match this product's core application.
The manufacturer lists the kit for the F-150 V8-5.0L, but the model years shown across sources differ. Some list 2018-2019 and others 2018-2020. A user forum thread on a 2017 truck asked the same question. Confirm the exact year with the manufacturer before ordering.
No. Owners on user forums say the kit keeps the stock airbox and swaps the tube and drop-in filter. The manufacturer describes the system as an OEM air box intake system.
The manufacturer specifies cleaning about every 100,000 miles under normal highway driving. Harsher or dusty conditions will call for more frequent checks.
Per the manufacturer's general intake guidance, a typical install needs a ratchet, extension, 10mm and 14mm sockets, a 10mm wrench, an Allen key, flat-blade and Phillips screwdrivers, and pliers. Start by disconnecting the negative battery cable, then unplug the mass air flow sensor connector. Disconnect the EVAP and crankcase vent lines before loosening the clamps that hold the stock tube to the throttle body and airbox. Take care with the sensor and vent connections, since a loose line is the most common cause of a rough idle or check-engine light after an intake swap. Follow the manufacturer's installation sheet for the exact routing and clamp order.
