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Our latest Type 5 Dual Port BOV made specifically for the 2015 WRX features the innovative new Smart Port drive-by-wire friendly staging technology that gives you the response of a plumb-back valve with the high performance benefits of a vent-to-atmosphere valve.
The Smart Port system involves a new piston manufacturing process utilizing specialized alloys and coatings along with a revolutionary new vent to atmosphere trumpet design.
These new designs allow for very fast response while also providing enhanced sealing.
The result is quicker spool-up and better performance on modern drive-by-wire vehicles. Smart Piston Design The new Smart Port piston is made from aerospace alloy reducing the weight of the piston and improving the response of the valve.A new military-spec coating technique is applied to the surface of the piston.
This low-friction material also helps make the BOV more responsive than any previous Type 5 BOV plus has excellent wear resistant characteristics extending the working life of the BOV. Smart Trumpet Design Turbosmart's new Smart Port trumpet allows the use of a softer spring in the body of the BOV to aid in valve response to the plumb back port while still retaining the ability to vent to atmosphere.