Garage Sale! › ARC BLOW OFF VALVE CAST PIPE ADAPTER FOR SR20 (S13/180SX/SILVIA) Image 1 of 2 Image 2 of 2 ARC BLOW OFF VALVE CAST PIPE ADAPTER FOR SR20 (S13/180SX/SILVIA) Sale Price: $135.00 Original Price: $145.00 *Pipe has been professionally Vapor Honed.Intended for SR20 Engines using 2” ID Piping.Made by Abbey Road Company Japan Add To Cart Added! *Pipe has been professionally Vapor Honed.Intended for SR20 Engines using 2” ID Piping.Made by Abbey Road Company Japan