2015-2016 Sonata and Optima Get K&N Performance Air Filter Option

K&N Sonata and Optima Air Filter 33-5026

A secondary frame for the K&N 33-5026 is part of the installation to ensure a proper seat for the filter inside the Sonata and Optima air box.

In the insecure days of the Great Recession of 2008-2011, many drivers had to tighten their belts, and run hard to stay in one place. Not everyone could buy a new car every 2-4 years. If they did, they bought economy cars and tried to keep them sound and in service longer. Hyundai and Kia were at the top of the value-priced list for the compact and family-sedan segment. With increasingly better build quality, more attractive sheet metal shapes, and the company's 360-degree/lifetime warranties, these cars became the transportation investment of choice for the value-minded. That the current Optima also won the 2016 Red Dot "Best of the Best" international design award is another acknowledgement to constant improvement.

Consistently lauded by automotive reviewers are the features and benefits being perfected and integrated into Hyundai and Kia products. Safety and technology upgrades have been largely successful, with the 2015 Sonata and 2016 Optima earning perfect five-star overall crash-test ratings in U.S. government testing.

Further, if you're keeping the Hyundai Sonata or Kia Optima as a car for your kids to drive in a few years, most models now come with emergency telematics systems (crash response, speed/geo-fencing, curfew limits, and roadside assistance), plus rearview camera, blind-spot monitoring, and cross-traffic alert.

Sonata and Optima K&N Air Filter

The K&N 33-5026 replacement engine air filter for the Hyundai Sonata and Kia Optima is a rectangular panel constructed of a special oiled cotton gauze that can be cleaned and reused.

Approximately 1.1 million Hyundai Sonatas and 928,560 Kia Optimas were purchased in the U.S. from 2009 to 2014.

Fast forward to 2015-2016 where repeat and new customers are still buying the South Korean marques and want to keep their new cars "new" and healthy. Beauty and health come from within and begin with maintaining a clean air induction system, starting with perhaps the most important part: the engine air filter.

The 2015 and 2016 Hyundai Sonata and Kia Optima share near-identical 2.4-liter inline 4-cylinder, 2.0-liter turbocharged 4-cylinder, and 1.6-liter turbocharged 4-cylinder engines, and all three need the same sort of air filter service approximately every 50,000 miles (depending on driving conditions).

If performed by you or your mechanic, it is a straightforward operation that ensures free-flowing fresh air for your Hyundai or Kia's induction system. It is especially important for turbocharged engines since they use even more air, and a step-up replacement air filter like the K&N 33-5026 will enhance acceleration and are designed to boost horsepower and acceleration.

K&N's 33-5026 engine air filter fills this bill and is a direct replacement for the stock filter in both the Sonata and Optima. It is a drop-in design manufactured from a special oiled cotton gauze and mounted in a polyethlene frame. It comes with an additional plastic frame to create an even better fit in the air box. Installation requires no tools and can be accomplished in about 5 minutes.

K&N Air Filter Cleaner 99-5000

The K&N 33-5026 filter will last the life of the vehicle, especially when cleaned with products formulated specifically for it and available in the K&N 99-5000 filter care service kit.

When it is time to check or clean the filter, simply reverse the installation steps, and clean and refresh the cotton gauze using K&N's 99-5000 filter care service kit.

If you're keeping your Sonata or Optima for a while, the investment in a K&N 33-5026 washable, reusable engine air filter is the logical, economical, and ecologically sound path to engine health. With regular service, it can last the lifetime of the vehicle and is backed by K&N's Million Mile Limited Warranty.

The K&N 33-5026 replacement air filter fits the following Kia Optima and Hyundai Sonata models:

2018 Hyundai Sonata 2.4L L4 Fuel Injection
2017 Hyundai Sonata 2.4L L4 Fuel Injection
2017 Hyundai Sonata Hybrid 2.0L L4 Fuel Injection
2017 Kia Optima 1.7L L4 Diesel Engine
2017 Kia Optima 2.0L L4 Fuel Injection
2017 Kia Optima Hybrid 2.0L L4 Fuel Injection
2016 Hyundai Sonata Hybrid 2.0L L4 Fuel Injection
2016 Hyundai Sonata 2.4L L4 Fuel Injection
2016 Kia Optima 2.4L L4 Fuel Injection
2016 Hyundai Sonata 2.4L L4 Fuel Injection
2016 Kia Optima 2.4L L4 Fuel Injection
2016 Kia Optima 1.7L L4 Diesel Engine
2016 Kia Optima Hybrid 2.0L L4 Fuel Injection
2016 Kia Optima 2.0L L4 Fuel Injection
2015 Hyundai Sonata 2.0L L4 Fuel Injection
2015 Hyundai Sonata 2.4L L4 Fuel Injection
2015 Hyundai Sonata 2.4L L4 Fuel Injection
2015 Kia Optima 2.0L L4 Fuel Injection
2015 Kia Optima 2.4L L4 Fuel Injection
2015 Kia Optima 1.7L L4 Diesel Engine

For a complete list of K&N air filters for the Hyundai Sonata, visit the Hyundai Sonata Air Filters page. For all K&N air filters for Kia Optima models, visit the Kia Optima Air Filters page. Shop for K&N replacement engine air filters by using the K&N's Search by Vehicle tool. When you are ready to purchase, locate an authorized K&N dealer near you by using the K&N Dealer Search tool.

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