Turbosmart Smart Port BOV for Evo 4-X

The Smart Port is an innovative Blow Off Valve combining advanced design with precision CNC machined billet components. The valve works using two staged ports and a one-way valve on the trumpet outlet. This enables the Smart Port BOV to work like both a bypass AND vent to atmosphere valve in one while also eliminating stalling and significantly reducing the chances of low-speed compressor surge. In addition, the Smart Port's unique lightweight piston is made from aerospace alloy with a military-spec coating, resulting in quicker valve response, better sealing and superior durability. Features and Benefits Direct fit upgrade for the factory BOV on EVO IV to X Staged dual ports allow for bypass and vent-to-atmosphere operation in one valve Smart Port trumpet eliminates stalling and allows smooth integration with the car's factory engine mapping A Milspec, lightweight, aluminum piston providing excellent valve response and prolonged piston life All billet CNC construction and attractiv