Garage Sale! › ARC BLOW OFF VALVE Steel ADAPTER FOR EJ20 (SF5 Forester) Image 1 of 2 Image 2 of 2 ARC BLOW OFF VALVE Steel ADAPTER FOR EJ20 (SF5 Forester) Sale Price: $60.00 Original Price: $80.00 Intended for EJ20 Engines using stock Piping.Made by Abbey Road Company Japan Add To Cart Added! Intended for EJ20 Engines using stock Piping.Made by Abbey Road Company Japan