TurboXS Recirculating Bypass Valve Subaru WRX STI 08+

The Recirculating Bypass Valve was designed for the ?All Function? enthusiast. No loud noises - only performance enhancing goodness. This valve will not cause any backfires or alter any Mass Air Flow Sensor readings between shifts.

The Bypass valve not only improves the look and/or sound of your 08 WRX/Sti, but it also helps improve performance. The stock bypass valve begins to crack open and bleed off boost pressure at around ~20 psi. Replacing your stock bypass valve with a TurboXS Recirculating Bypass Valve will allow you to run much higher boost pressures and make significantly more torque and horsepower. Additionally, when the stock valve leaks, it makes your turbocharger and your intercooler work harder to make the same boost pressure. Replacing it with a TurboXS valve improves both your turbocharger and your intercooler efficiency. TurboXS valves have been race proven at boost pressures of 50+ psi to give you the peace of mind that that no matter how far you want to push your car for power, your TurboXS valve can handle it.

Specifically designed for MY 2008+ Subaru WRX & Legacy GT. The WS08-RBV requires no adapter kit to install. It is designed for people who want to run high boost levels, but still vent their BOV back to the air intake to maintain maximum driveability.

Valve Features:

-Adjustable spring rate
-One piece flange including model specific mounting
-High polished valve body
-Anodized exterior for protection in inclement weather conditions
-Teflon coating on the piston for long lasting maintenance free performance.