Boost control
MK2 Focus ST225
Forge Motorsport | Turbo Blanking Plate | MK2 Focus ST, MK2 RS & ST250
GFB | T9454 VTA Blow-Off Valve | Focus ST and RS MK2
TurboSmart | Kompact Dual Port Blow Off Valve (Shortie) | Focus RS MK2 & ST225
TurboSmart | Kompact Plumb Back (Diverter Valve) Shortie | Focus MK2 RS & ST225
Forge Motorsport | Direct Fit Piston Recirculation Valve | Focus RS MK2 and ST
GFB | T9354 DV+ Diverter Valve | Ford Ford Focus ST and RS
GFB | T9654 DVX Diverter Valve With Volume Control | Focus ST and RS MK2