A very popular upgrade for the Focus ST due to the RS clutch being designed to take more power and torque.
x4 Ford Focus RS Mk2 Mud Flaps Mudflaps in Black with RS Logo - 4mm PVC MSA
Sport Exhaust Downpipe Locking Bolt Kit Ford Focus RS MK2 Focus ST225 Steel
Ford FOCUS RS Mk2+ other NEW,Wheel C/CAP X4 54.5 Dia Blue,Ford logo,Genuine Part
Genuine Ford Focus RS MK2 Mondeo MK4 Driveshaft Oil Seal 75MM Drivers Side
BOSCH IRIDIUM SPARK PLUGS x 5 FIT FORD FOCUS RS MK2 / ST225 - FR7NI33
Ford Focus RS MK2 2.5 OE Hutchinson Gearbox Mount