TurboMart VR09 Valve is designed specifically for Ford 1.0 Ecoboost engines, including Ford Fiesta and Ford Focus.
The valve ventilates 50% / 50% - half recycling for the car does not report errors and the rest atmospheric to give the classic blowoff sound.
This valve should be seen as a performance upgrade as well as to those who want sound, the sound is discreetly made so with "regular" driving at low acceleration it does not say very much, but with hard acceleration and charging pressure - there is good sound on the valve.