More Power for 2015-2019 Hyundai Sonata & Kia Optimas

Help protect the engine of your Sonata or Optima and gain a guaranteed increase in horsepower and torque with the K&N® 69-5321TS air intake system, engineered specifically for 2015-2019 Hyundai Sonata and Kia Optima 2.4L models. The K&N® 69-5321TS mandrel-bent aluminum intake system offers an estimated power increase of 5.8-horsepower and 8.4 lb./ft. of torque*.

The 69-5321TS is designed to help 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. Allowing a higher volume of air into the cylinders allows the engine to burn fuel more efficiently during combustion—providing an increase in power.

Since engine combustion is most efficient in an oxygen-rich environment, keeping engine air cooler often significantly increases engine combustion efficiency. The 69-5321TS intake system features a mandrel-bent aluminum intake tube.

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 69-5321TS 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.

The K&N 69-5321TS 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 installation videos for many vehicles are available on the K&N website.

Engineered to fit:

• 2019 Hyundai Sonata 2.4L, All Models

• 2019 Kia Optima 2.4L, All Models

• 2018 Hyundai Sonata 2.4L, All Models

• 2018 Kia Optima 2.4L, All Models

• 2017 Hyundai Sonata 2.4L, All Models

• 2017 Kia Optima 2.4L, All Models

• 2016 Hyundai Sonata 2.4L, All Models

• 2016 Hyundai Sonata 2.4L, All Models

• 2016 Kia Optima 2.4L, All Models

• 2016 Kia Optima 2.4L, All Models

• 2015 Hyundai Sonata 2.4L, All Models

• 2015 Hyundai Sonata 2.4L, All Models

• 2015 Kia Optima 2.4L, All Models

• 2015 Kia Optima 2.4L, 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.

K&N performance air intake systems come with a horsepower guarantee—you will get an increase in horsepower and torque! During dynamometer testing, the 69-5321TS provided an estimated power increase of 5.8-horsepower and 8.4 lb./ft. of torque *.

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.