Specifically designed for the 08 model Subaru Impreza WRX, Turbosmarts Dual Port blow off valve offers superior flow, full adjustability and higher boost handling capability than the factory unit. Featuring sequential ports; with the fully recirculating port operating under low boost and the atmospheric port venting at high boost, the BOV combines the best of the recirculating and atmospheric valves. Easy to fit and setup bolts directly onto the factory mounts. Lightweight and compact, the Dual Port bolts directly onto the factory plumbing with no specialized tools needed. Supplied with a screw-in blanking plug for easy conversion to a fully recirculating (Plumb Back) or a fully atmospheric (Supersonic) BOV.
Dual Port MPS features sequential recirculating/atmospheric ports for total flexibility, tool-free adjustment via a rotating cap and a 360 degree rotating nipple.