Bypass Plug for Subaru Impreza WRX STI Atmospheric Blow Off Valve 33mm BOV USA
Our MadDogPerformance blanking plug fits most Subaru Impreza WRX's or STI's. To ensure this part fits your vehicle, just un-clamp your recirculating valve hose and measure the inner diameter of the hose. If it is 33mm or 1.30 inches, than this plug will work for your application. However, if the inner diameter of the hose is larger or smaller than 1.3 inches or 33mm then it will fit.