Product Details: The Bosch 5221WS Engine Air Filter is engineered to provide optimal engine protection and performance for a range of vehicles, including select Acura and Honda models. This high-quality air filter ensures that only clean air enters the engine, preventing contaminants from causing internal damage and maintaining efficient engine operation. Constructed with high-velocity cellulose media, the filter offers superior dust-holding capacity, effectively capturing even the smallest particles to safeguard engine components. The evenly spaced pleats enhance airflow, reducing air resistance and promoting better engine efficiency. The imported polyurethane foam seal delivers excellent elasticity and sealing performance, effectively protecting against water and heat, thereby extending the filter's service life. With a filtering efficiency of up to 99.5%, the Bosch 5221WS ensures that the engine receives the cleanest air possible, contributing to improved fuel efficiency and overall vehicle performance. This air filter is compatible with various Acura and Honda models, including the 2006-2011 Honda Civic and the 2007-2011 Honda Element, making it a versatile choice for fleet operators seeking reliable engine protection across multiple vehicle types.