The K&N 63-2606 is the 63 Series AirCharger cold-air intake for the 2.3L four-cylinder EcoBoost in the 2018 Ford Mustang. It replaces the factory air box and filter with a tube-and-filter assembly built around a large conical cotton gauze element. Owners on user forums describe it as the largest conical filter K&N offers for this application, which is the main reason to choose it over a stock airbox: more filter surface area and a straighter inlet path. Forum discussions also say the kit works with the factory engine computer, so a tune is not required to bolt it on.
Because the filter is cotton gauze, it can be cleaned and reused instead of replaced, and user forums cite service intervals of up to 100,000 miles. The kit includes five stainless steel worm-gear clamps and two couplers, so the hardware is in the box. Fitment is the key check before you buy. Sources disagree on the year range, with some listing 2018 to 2019 and others 2018 to 2023, so confirm your model year and engine against your VIN with K&N. Search terms: K&N 63-2606 2018 Mustang 2.3L EcoBoost intake, K&N AirCharger 2.3 EcoBoost cold air intake, 2018 Mustang EcoBoost reusable cotton gauze filter, 2.3L Mustang intake no tune.
Fitment details vary across sources. Some list only 2018 and 2019, while others extend the range through 2023. Confirm your year and 2.3L engine with K&N before ordering.
Owners on user forums report that the kit works with the factory engine computer. Because published guidance varies, check with K&N whether a retune is recommended for your setup.
Owners on user forums list the intake assembly, the cotton gauze filter, five stainless steel worm-gear clamps, and two couplers.
User forums cite up to 100,000 miles between servicing. Actual intervals depend on driving and riding conditions, so inspect the filter regularly.
