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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 over 70psi, 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.
Features:
-Larger cross section compared to stock
-100% recirculating
-Higher flow
-Pressure tested to 70 PSI
-Easy install
-No need for re-tune
Installation is simple and all mounting hardware is included.
[ Special Order ]
| Year Fitments | Subaru STI |
|---|---|
| 2004 | ✓ |
| 2005 | ✓ |
| 2006 | ✓ |
| 2007 | ✓ |
| 2008 | ✓ |
| 2009 | ✓ |
| 2010 | ✓ |
| 2011 | ✓ |
| 2012 | ✓ |
| 2013 | ✓ |
| 2014 | ✓ |
| 2015 | ✓ |
| 2016 | ✓ |
| 2017 | ✓ |
| 2018 | ✓ |
| 2019 | ✓ |
| 2020 | ✓ |
| 2021 | ✓ |
WARNING: Operating, servicing and maintaining a passenger vehicle or off-road vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to P65Warnings
| SKU | Boomba Racing Recirculating Bypass Valve (04-21 STI) |
|---|---|
| Brand | Boomba Racing |






