Turbosmart TS-0203-1221 Kompact 20 mm Plumb Back Universal Fit Blow Off Valve: Automotive. Buy Turbosmart TS-0203-1221 Kompact 20 mm Plumb Back Universal Fit Blow Off Valve: Cargo Management - ✓ FREE DELIVERY possible on eligible purchases. More versatility, higher performance 。 OEM type fitment 。 Offers superior flow 。 Offers greater structural integrity under boost 。 Fits most cars using the factory Bosch or Denso bypass valves and Subaru Legacy/Liberty 09-10 。 Full recirculating blow off valve. The plumb back system recirculates all excess pressure back into the intake system. Great for enthusiasts not wanting to be noticed but wanting the performance and reliability benefits of a quality blow off valve. Suits Mazda speed (MPS) , 6, CX7, Subaru Legacy/Liberty GT, WRX MY08-current, Forester XT MY08-current. 。 。 。