Upgrade your 2021-2026 Ford E-350 and E-450 Super Duty with the K&N 33-5138 High-Flow Air Filter, engineered to deliver improved airflow and engine performance. Constructed with layered, oiled cotton media, this washable and reusable filter captures contaminants effectively while promoting increased horsepower. Designed for easy installation into your factory air box, it provides a straightforward upgrade that enhances engine efficiency and power output without the need for permanent modifications. Backed by K&N's No-Hassle Lifetime Limited Warranty, this filter is built to last for the entire lifespan of your vehicle, making it a reliable choice for demanding driving conditions.




