The most complete Subaru tuning solution on the planet; High Flow Filter - increased power and fuel economy for the Subaru WRX and STI.
Combining the world's best selling, most flexible ECU upgrade solution along with a high flow filter to increase air flow. Start here, down the modifying road with the best bang for your buck by treating your vehicle to parts that will increase your power and improve overall driveability. Nothing but a win/win situation!
K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority of vehicles on the road. These filters are washable and reusable and are custom designed to fit into your existing factory air box. Their drop-in design means adding performance is simple. With most vehicles you simply remove the disposable air filter and replace it with a K&N.
- Accessport V3
- K&N Drop In Panel Filter
- Easily Change Maps with the Push of a Button
- Increased Air Flow While Maintaining Filtering Efficiency