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Ford Focus ST225 Performance Parts & Upgrades

Upgrade your MK2 Ford Focus ST225 with performance parts from leading brands, including AIRTEC, Cobra, SuperPro, Forge Motorsport and Genuine Ford.

Browse induction kits, intercoolers, exhaust systems, suspension upgrades, brake components, clutches, engine mounts and servicing parts designed for the 2.5-litre turbocharged Focus ST.

Not sure where to begin? Read our Focus ST225 tuning guide for advice on the most effective upgrades, common problems and recommended modifications for different power goals.

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  • Focus RS MK2 LUK clutch and flywheel kit - Upgrade for MK2 MK2 Focus ST225225 - Wayside Performance LUK Focus RS MK2 clutch and flywheel kit with upgraded clutch plate and flywheel for MK2 Focus ST225 performance upgrade
    LUK

    Focus RS MK2 clutch and flywheel kit - Upgrade for MK2 Focus ST225 LUK

    From £649.00
    From £649.00
    £599.00
  • Genuine Ford Focus MK2 ST ST225 Driveshaft - Wayside Performance Genuine Ford Focus MK2 ST ST225 Driveshaft - Wayside Performance
    Genuine Ford

    Genuine Ford Focus MK2 ST ST225 Driveshaft

    From £699.00
    From £699.00
  • TRC1136 Complete Front Control Arm Kit (21mm Ball Joints - After March 2006) for the 2005 to 2012 Ford Focus MK2 2.5 ST - Wayside Performance TRC1136 Complete Front Control Arm Kit (21mm Ball Joints - After March 2006) for the 2005 to 2012 Ford Focus MK2 2.5 ST - Wayside Performance
    SuperPro

    SuperPro Front Control Arm Kit for Ford Focus MK2 2.5 (21mm Ball Joints - After March 2006) TRC1136 ST

    £289.99
    £289.99
    £301.87
  • Wayside Performance Gel domed badges - Wayside Performance Wayside Performance Gel domed badges - Wayside Performance
    Wayside Performance Ltd

    Wayside Performance Gel domed badges

    From £4.00
    From £4.00
  • Wisbech Engineering Induction Kit Focus MK2 ST225 & MK2 Focus RS - Wayside Performance Wisbech Engineering Induction Kit Focus MK2 ST225 & MK2 Focus RS - Wayside Performance
    Wisbech Engineering

    Wisbech Engineering Induction Kit Focus MK2 ST225 & MK2 Focus RS

    From £370.00
    From £370.00
    £0.00
  • MK2 Focus RS Spark plugs - Wayside Performance
    Bosch

    MK2 Focus RS Spark plugs - Upgrade for MK2 Focus ST225 - Set of 5

    £69.99
    £69.99
  • Ford Focus ST & RS MK2 Cambelt & Waterpump kit - Genuine Ford - Wayside Performance Ford Focus ST & RS MK2 Cambelt & Waterpump kit - Genuine Ford - Wayside Performance
    Genuine Ford

    Ford Focus ST & RS MK2 Cambelt & Waterpump kit - Genuine Ford

    From £269.00
    From £269.00
  • Forge Recirc Recirculation Valve direct fit MK2 MK2 Focus ST225225 - Wayside Performance
    Forge Motorsport

    Forge Recirc Recirculation Valve direct fit MK2 Focus ST225

    £159.99
    £159.99
    £153.97
  • Wayside Performance Logo Stickers x 3 - Wayside Performance
    Wayside Performance Ltd

    Wayside Performance Logo Stickers x 3

    £3.00
    £3.00
  • MK2 Ford Focus bonnet catch conversion kit - Wayside Performance
    Wisbech Engineering

    MK2 Ford Focus bonnet catch conversion kit

    £129.99
    £129.99
  • Ford MK2 Focus ST225 Hardrace uprated front lower arms / wishbones - Wayside Performance Ford MK2 Focus ST225 Hardrace uprated front lower arms / wishbones - Wayside Performance
    Hardrace

    Ford MK2 Focus ST225 Hardrace uprated front lower arms / wishbones

    From £409.00
    From £409.00
    £430.21
  • Genuine Ford MK2 MK2 Focus ST225225 & RS Aux Auxiliary belts - Wayside Performance
    Genuine Ford

    Genuine Ford MK2 MK2 Focus ST225225 & RS Aux Auxiliary belts

    £44.99
    £44.99

Choosing upgrades for your Focus ST225

The best upgrades for your MK2 Focus ST225 depend on its current condition, intended use and power target.

For most tuned road cars, the priority is ensuring the vehicle is mechanically healthy before improving airflow and cooling with a suitable induction kit, intercooler and exhaust system.

The standard clutch can also become a limiting factor as torque increases, while suspension bushes and control arms are common wear points that can significantly affect how the car drives.

Our dedicated collections contain detailed recommendations for each upgrade category, including which products suit Stage 1, Stage 2, higher-powered and track-driven cars.

For complete staged tuning advice, read our Focus ST225 tuning guide.

Why buy Focus ST225 parts from Wayside Performance?

We supply parts that we regularly fit, test and tune on Focus ST225s. This allows us to recommend components based on real-world fitment, performance and drivability rather than relying solely on manufacturer descriptions.

Contact us if you need help choosing compatible parts or planning the next stage of your build.