The K&N 57 Series FIPK is a cold-air intake kit for the 5.0L Coyote V8 in the Mustang GT. The manufacturer describes it as a roto-molded HDPE intake tube paired with a high-flow filter that drops into the factory airbox. K&N guarantees that the kit increases horsepower and torque, and the oiled cotton filter is washable and reusable. Over time that makes it a better value than a disposable replacement filter, and the manufacturer also says the design improves throttle response and engine sound.
Fitment is listed by the manufacturer for 2018 through 2021 Mustang GT models with the 5.0L V8 (fuel injected). Buyers searching for a 2018 Mustang GT cold air intake, a 57-2605 K&N intake, or a Coyote FIPK upgrade will find the relevant details here. The manufacturer rates installation at about an hour or less with basic hand tools, and the filter needs cleaning only every 100,000 miles under normal highway driving. Confirm your exact model year against the instruction sheet included with the kit before you order.
The manufacturer states the washable filter typically needs cleaning only every 100,000 miles under normal highway driving conditions.
The manufacturer backs the kit with its No-Hassle Lifetime Limited Warranty.
The manufacturer says a typical installation can be completed in 60 minutes or less using simple hand tools.
The manufacturer rates this as a bolt-in job that takes about an hour with simple hand tools, which suits a home mechanic with basic experience. Disconnect the battery before you start. Owners on user forums who worked on earlier Mustang generations reported that the filter is hard to slide into the airbox once the heat shield is in place, so fitting the filter before the shield is the easier order. The install guides I found covered other model years, so check each step against the instruction sheet packed with your kit before you begin.
