A K&N drop-in High-Flow air filter engineered for Buick Lacrosse and Regal applications (2010–2016 L4 2.4L and V6 3.6L). The washable, reusable layered oiled-cotton media is built to improve airflow while capturing contaminants and is designed to increase horsepower. It installs into the factory air box and is backed by K&N’s No‑Hassle Lifetime Limited Warranty for long-term service.
K&N 10-11 Buick Lacrosse / 11 Regal Replacement Air Filter