COBB Stage 1+ Power Package - STI 19-21 / Type-R 18 Blow Off Valve - Progressive-density filter element improves

- Progressive-density filter element improves power and efficiency

The vanes are designed to create additional turbulence inside the rotor without compromising air flow which in turn transfers more heat from the rotor to atmosphere

includes a double-sided cushioned tape disc for those of you who will not drill into your mounting surface

This concept is very important

COBB Stage 1+ Power Package - STI 19-21 / Type-R 18 Blow Off Valve - Progressive-density filter element improvesThis package includes the COBB SF Intake and Airbox along with the V3 Accessport! WHY? Want the world's best selling, most flexible ECU upgrade solution along with COBB's SF Intake System to increase air flow? Start here, down the modifying road with the best bang for your buck by treating your vehicle to parts that will increase your power and improve overall driveability. Nothing but a win win situation! FEATURES Subaru Stage 1+ Power Package STI