Reviewed By Matthew M (Sunnyside, WA) Reviewed for a 2010 Subaru Impreza —4/4/2017 8:18 AM
I've only had the filter installed for a week or two and the engine already is performing better and has better pickup and mileage.
Reviewed By Ryan W (Brecksville, OH) Reviewed for a 2005 Subaru Impreza —10/20/2005 4:06 AM
I noticed increased midrange and high end power with this filter, which definitley helps with merging into freeway traffic. In the two tankfuls that I have had it, I have noticed a 7% decrease in fuel efficiency, but that could just be due to my ECU adujusting to the higher air flow.