Not sure which 2001 Subaru Outback 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:
"So far I have placed K&N Air Filters in 4 different vehicles and each has shown an improvement in gas mileage. My Subaru has improved about 1 mpg. Even a 1997 Caravan has shown improvement." —Charles M from Elgin, IL bought a K&N Air Filters for a 2001 Subaru Outback.