Not sure which 2001 Volvo S40 Air Filters are right for you? We have over 14810 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"What's not to like about never having to buy another air filter?!
Buy it for the valuve, keep it for the performance. Vehicle is performing very well. We are very pleased with this filter." —James S from Springfield, IL bought a K&N Air Filters for a 2001 Volvo S40.