The K&N 63-2599 is a 63 Series AirCharger performance intake for the 3.5L EcoBoost V6 in the F-150. The manufacturer describes a roto-molded intake tube, a red cotton-gauze K&N filter (replacement RU-5173), and a custom heat shield that mounts to the factory points, all designed to replace the factory intake tubing and filter. It is a complete kit, so you get matching hardware and couplers instead of piecing together a filter and loose tubing.
The manufacturer presents the system as reducing airflow restriction for a guaranteed horsepower and torque gain, with estimated figures of 12.3 HP at 4915 RPM and 25 lb-ft of torque. Owners on user forums are more skeptical about EcoBoost intakes. They note that the factory intake already flows well and that the engine computer can limit airflow unless the truck is tuned, so expect modest gains and a noticeable change in intake sound. Choose this kit over a cheap drop-in filter if you want a full-tube, cotton-gauze 3.5 EcoBoost cold air intake with the mounting hardware included. Search terms it matches include 63-2599 AirCharger, 2017 F-150 3.5 EcoBoost intake, and roto-molded CAI.
The manufacturer's installation sheet lists the 2017-2025 F-150, while its product listing shows 2017-2023 and the product title reads 2017-2018. Confirm your exact model year against the manufacturer's fitment data before ordering.
Yes. The manufacturer's instructions have you disconnect the negative battery cable first. The manufacturer notes this erases pre-programmed electronic memories, so write down radio and other settings beforehand, since some radios require an anti-theft code after reconnection.
The manufacturer recommends that customers do not discard the factory air intake. Store it in case you return the truck to stock or sell it.
The manufacturer says a typical installation takes around an hour and uses the vehicle's existing factory mounting points, so no drilling is required. You will need a flat-blade screwdriver and a 4mm Allen key. Disconnect the negative battery cable before starting, as noted above. Install the heat shield edge trim with the supplied super glue, as shown in the manufacturer's instructions. Use all the provided hardware, because the instructions warn that failing to follow them or skipping the supplied hardware can cause problems. Owners on user forums generally describe the job as straightforward for a home mechanic.
