Kompact Plumb Back - Subaru TS-0203-1215 Full recirculating BOV. The Plumb Back system recirculates all excess pressure back into the intake system. Great for enthusiasts not wanting to be noticed but wanting the performace and reliability benefits of a quality BOV. Suits Subaru WRX.

Kompact Plumb Back - Subaru TS-0203-1210 Full recirculating BOV. 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 BOV. Suits Subaru WRX MY08-14

Kompact Dual Port - Subaru TS-0203-1010 The Kompact Dual Port blow-off valve is a direct replacement for the stock bypass valve on the Subaru WRX MY08-14 . Standard valves crack with age and heat cycling, and rely on rubber diaphragms which perish. They're also simply not designed to handle increased boost levels. Turbosmart's Kompact offers big blow-off valve performance in a small package. Its billet aluminium construction provides strength, while the precision-machined lightweight piston gives excellent valve response and sealing without relying on rubber diaphragms or O-rings, so it's far more durable, and guards against compressor surge even when the boost is turned up.

Kompact Dual Port - Subaru TS-0203-1015 Dual outlet-type BOV. The Kompact Dual Port vents both to the atmosphere and back into the air intake. Ports with sequential timing allow quieter operation during normal driving, while still offering the performance and sound of a vent-to-atmosphere BOV when the going gets harder. Perfect for owners of stock to lightly-modified cars looking for the classic vent-to-atmosphere BOV sound in an OEM-replacement, space efficient package.

Kompact Dual Port-34mm TS-0203-1023 Dual outlet-type BOV. Dual Port vents both to the atmosphere and back into the air intake. Ports with sequential timing allow quieter operation during normal driving, while getting all the benefits of a vent-to-atmosphere BOV under race conditions. Easily converted to a full atmospheric or full bypass unit by using supplied port blanking plug.