The K&N high-flow air filter boasts exceptional airflow with minimal restriction while maintaining crucial filtration levels that guarantee prolonged engine durability. Typically, our OE replacement air filters enhance performance by 1-4 horsepower. The key to our success lies in the distinctive properties of our filter material, which was pioneered by K&N through their desert motocross racing experiences where they sought only victory and stumbled upon a cotton filtration technology that would prove to be game-changing. Notably, the high-flow cotton gauze air filter is washable, reusable, and engineered for long-lasting performance throughout an automotive or motorcycle engine's lifespan.