To get any power increase car needs to be Chip Tuned. All car models listed can have several turbo options.
Turbocharger Ford Focus S-Max C-Max Kuga Galaxy Mondeo 2.0 TDCi Turbo Upgrade
Billet Turbocharger Ford Focus Fiesta 1.6 TDCi Citroën C3 C4 1.6 HDi Turbo
DIRENZA MVT FRONT MOUNT INTERCOOLER KIT UPGRADE FOR FORD FOCUS MK3 2.3 RS 12-18
Turbocharger Ford Focus Fiesta C-Max Transit 1.0 1761178 New Billet Turbo
Brake Vacuum Pump Valve Upgrade For FORD Focus C-Max CB7 CM5G-2A451-GA UK 11-15
10mm Performance Ignition Leads Upgrade for Ford Focus MK1 RS ST170 2.0 1.8 16v