Boost control
MK4 Focus ST
Turbosmart | Kompact EM Plumb Back (Diverter Valve) VR2 | Ford Focus MK4 ST
TurboSmart | Kompact Em Dual Port Bov VR2 | MK4 Focus ST
Forge Motorsport | Atmospheric Dump Valve | Ford Focus ST MK4 280
Forge Motorsport | Recirculating Valve | Ford Focus ST MK4 280