Gain 18.9-Horsepower* for Your 2018-2019 Ford Mustang 2.3L L4

Gain an estimated 16.4 lb./ft. of torque* with the 63-2606

The Ford Mustang is one of the most iconic American vehicles—with the 2018 2.3L model offering 310-horsepower and 350 lb./ft. of torque, independent rear suspension, and AdvanceTrac® with Electronic Stability Control (ESC), among many other features. If you’re looking to boost the power of your Mustang, gain a guaranteed increase in horsepower and torque with the K&N® 63-2606 air intake system, engineered specifically for 2018-2019 Ford Mustang 2.3L L4 models. The K&N® 63-2606 high-density polyethylene (HDPE) intake system boasts an estimated power increase of 18.9-horsepower and 16.4 lb./ft. of torque*, and is protected by K&N’s 10-Year/Million Mile Limited Warranty.

“Super easy to install. Love the sound.” – Tyrone from Colorado [Part No. 69-3531TS]


The 63-2606 is designed to help keep engine air cooler, which can increase engine combustion efficiency, and helps provide a smooth, low-restriction path for airflow to the engine. Your engine needs oxygen to create power; the cylinders in your vehicle’s engine need to have air to create the explosion that produces horsepower and torque. Since cold air contains more oxygen molecules than warm air, injecting a higher volume of oxygen-rich air into the cylinders allows the engine to burn fuel more efficiently during combustion—providing an increase in power.

In a typical stock air intake system, air has to pass through a thick, disposable paper filter, and then move through a narrow system of tubing that can cause air to swirl and become turbulent. Excess turbulence causes the molecules within the air to collide, creating heat, which lowers the density of the air and reduces the efficiency of combustion. All K&N intake systems are specifically engineered to help keep your engine air cooler.

“Great product. Easy to install. And wow what a performance improvement.” – Marcus from North Carolina [Part No. 71-4519]

Gain an estimated 18.9-horsepower* with the 63-2606


Since engine combustion is most efficient in an oxygen-rich environment, keeping engine air cooler often significantly increases engine combustion efficiency. The 63-2606 intake system features a free-flowing, high-density polyethylene intake tube, which is engineered to reduce turbulence in the air, and helps keep engine air cooler for increased engine performance! The 63-2606 also incorporates a steel heat shield, which helps protect the air filter and intake air from high temperatures within the engine bay.

“Easy install that anyone can do. Sounds great and the performance has noticeably improved.” – Anthony from New Jersey [Part No. 69-9508T]


High-density polyethylene (HDPE) has a very high strength-to-density ratio, as well as the ability to withstand extremely high temperatures—making it an excellent choice for the environment in the engine bay. HDPE can also be molded into custom shapes, allowing it to be adapted for specialized tubing designs.

A steel shield helps protect the filter from high engine bay temperatures


Under normal circumstances, most automotive air filters demonstrate an inverse relationship between airflow and efficiency—the higher the airflow, the less efficient the air filter is at protecting the engine, and vice versa. The oiled design of K&N air filters assists in “absorbing” dirt particles—and in turn helps incorporate those particles into the filter surface itself, which helps maintain the filter’s efficiency and ability to flow air. When tiny particles are captured and saturated with oil, they in turn can become tacky, allowing them to capture other particles.

The High-Flow Air Filter™ included in the 63-2606 intake kit is oversized with a conical shape, providing a greater surface area and allowing for a service interval of up to 100,000 miles between cleanings (under normal highway driving conditions). High-Flow Air Filters feature an oiled, layered design. When your filter does need to be cleaned, you can use the K&N Recharger® Kit (99-5000 or 99-5050) to quickly and easily restore your filter’s performance. Each K&N intake (and filter!) is designed to last for the life of your vehicle.

“Couldn’t be happier with this intake. Easy installation, great sound and noticeable performance. Looks great, sounds great and performs as advertised. Well done K&N.” – Shawn from North Carolina [Part No. 69-8621TTK]


The K&N 63-2606 intake system is engineered to incorporate factory mounting points and the factory mass air sensor. Installation can typically be completed in 90 minutes or less, and requires only simple hand tools. Detailed instructions are included in your kit, and an installation video (included above) will walk you through the installation process.

Engineered to fit:

  • 2019 Ford Mustang 2.3L L4 Fuel Injection All Models
  • 2018 Ford Mustang 2.3L L4 Fuel Injection All Models


Each intake system comes with a 10-Year/Million Mile Limited Warranty. Furthermore, using a K&N replacement air intake system will not void your factory warranty; in the U.S., manufacturers must provide evidence that an aftermarket part is the cause of a necessary repair in order to void or deny warranty coverage. The Consumer Products Warranty Act of 1975 (also known as the Magnuson-Moss Warranty Act) protects consumers’ rights to their warranty coverage.

“Super easy to install. Sounds great and could definitely tell a difference in throttle response after. Highly recommend.” – Keith from Missouri [Part No. 69-0026TS]


K&N performance air intake systems come with a horsepower guarantee—you will get an increase in horsepower and torque! During dynamometer testing, the 63-2606 provided an estimated power increase of 18.9-horsepower and 16.4 lb./ft. of torque*. Follow this link to view the complete dynamometer chart.

The 63-2606 after installation

“There was an immediate difference in sound and pickup after installation, HIGHLY recommended.” – Herbert from Florida [Part No. 63-3082]

Visit this page to purchase the 63-2606 air intake system, or visit the vehicle search page to explore air intake system options for your vehicle. Join the millions of customers who trust K&N to help them boost performance and protection in their vehicles!

Legal in 49 states. Not legal for sale or use in California on any pollution controlled motor vehicle.

*Horsepower gains vary among products and applications, but each K&N performance air intake system is designed to increase airflow efficiency for specific vehicles and their engines. Each kit undergoes significant testing to help ensure that the filter and intake tube are engineered to deliver large increases in airflow and horsepower. Please visit individual product pages to view horsepower estimates for your specific vehicle.