Blow-Off Valve

The GrimmSpeed DRY-CON Panel Filter offers a direct OE replacement for your vehicle's stock airbox, providing an easy installation process. Utilizing a dry-construction media with two synthetic layers, this filter achieves similar flow capabilities to oiled media while maintaining high filtration efficiency. This design results in 62% better flow than OEM filters, leading to increased torque and horsepower. GrimmSpeed's testing showed gains of up to +9 lb-ft of torque and +6 whp on a 2020 factory-tuned STI, with no engine tuning required. The filter features a long service life of up to 20,000 miles and is serviceable/reusable with popular cleaning kits. It is also backed by a 1-year warranty and is 100% Made in the USA. This panel filter is compatible with various Subaru models, including the 2022+ WRX, 2019-21 STI, 2019+ Ascent, 2019-23 Forester, and 2020+ Legacy and Outback. Note that it may not fit all trim models within the specified year ranges for Legacy and Outback.