Boomba Racing Bypass Valve Subaru WRX (2015-2021) Anodize or Aluminum

Fitment Information Subaru WRX (2015, 2016, 2017, 218, 2019, 2020, 2021) Emissions Compliance This item does not have a CARB EO Number and does not ship to California or any CARB states. Specs & Features Larger cross section compared to stock 100% recirculating Higher flow Pressure tested to 75 PSI Easy install No need for re-tune Product Description We were able to pick up 15 hp and 9 tq from switching to our piece. This high performance recirculating bypass valve is precision machined out of aircraft grade billet aluminum. It features an internal brass piston design and is pressure tested to withstand up to 75psi, allowing it to compliment even the most aggressive turbo builds. Spring pre-load determines the pressure differential required across the piston before the BOV opens and releases the pressurized intake charge. Designed to be a replacement for the OEM bypass valve and is available in 4 different colors. By applying equal amounts of air pressure to both the c