K&N Engineering knn57-1568

K&N 57-series OEM air box intake for RAM 2500/3500 6.7L diesel (2013–2018) pairs a washable, reusable oiled cotton High-Flow filter with a CAD-designed intake tube to improve airflow and provide measurable gains in horsepower and torque. The direct-replacement filter fits the factory air box, can go up to 100,000 miles between services under normal highway driving, installs with basic hand tools, and is legal in all 50 states under K&N's No‑Hassle Lifetime Warranty.