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MK3 Ford Focus ST250 Performance Parts

Upgrade your MK3 Ford Focus ST250 with performance and replacement parts from AIRTEC Motorsport, Cobra Sport, Forge Motorsport, Genuine Ford, Maxton Design, Powerflex, Whiteline and Wayside Performance.

Browse induction kits, intercoolers, exhaust systems, suspension upgrades, brakes, clutches, engine mounts, servicing parts and styling upgrades for both pre-facelift and facelift Focus ST250 models.

Not sure where to begin?

Read our MK3 Focus ST250 tuning guide for recommended Stage 1 and Stage 2 modifications, expected power figures and advice based on our custom dyno tuning experience.

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  • MK3 Focus RS Genuine Ford 2pc Clutch -- Upgrade for MK3 Focus ST250 - Wayside Performance MK3 Focus RS Genuine Ford 2pc Clutch -- Upgrade for MK3 Focus ST250 - Wayside Performance
    Genuine Ford

    MK3 Focus RS Genuine Ford 2pc Clutch -- Upgrade for MK3 Focus ST250 & MK4 Focus ST

    £299.99
    £299.99
    £399.99
  • Pro Hoses Four-piece Silicone Visual Hose Kit Upgrade for Focus Mk3 St 250 - Wayside Performance Pro Hoses Four-piece Silicone Visual Hose Kit Upgrade for Focus Mk3 St 250 - Wayside Performance
    AIRTEC Motorsport

    Pro Hoses Four-piece Silicone Visual Hose Kit Upgrade for Focus Mk3 St 250

    From £126.10
    From £126.10
  • Pro Hoses Boost Hose Kit Upgrade for Focus Mk3 St 250 - Wayside Performance Pro Hoses Boost Hose Kit Upgrade for Focus Mk3 St 250 - Wayside Performance
    AIRTEC Motorsport

    Pro Hoses Boost Hose Kit Upgrade for Focus Mk3 St 250

    From £247.05
    From £247.05
  • Side Skirts Diffusers Ford Focus Mk3 St - Wayside Performance Side Skirts Diffusers Ford Focus Mk3 St - Wayside Performance
    MAXTON® DESIGN

    Maxton Design Side Skirts Diffusers Ford Focus Mk3 St

    £184.00
    £184.00
  • Spoiler Cap Ford Focus 3 St Estate Pre-facelift - Wayside Performance Spoiler Cap Ford Focus 3 St Estate Pre-facelift - Wayside Performance
    MAXTON® DESIGN

    Maxton Design Spoiler Cap Ford Focus 3 St Estate Pre-facelift

    £129.00
    £129.00
  • Front Splitter Focus Mk3 St Preface Model - Wayside Performance Front Splitter Focus Mk3 St Preface Model - Wayside Performance
    MAXTON® DESIGN

    Maxton Design Front Splitter compatible with Ford Focus ST Mk3

    £174.00
    £174.00
  • Rear Side Splitters Ford Focus 3 St Estate - Wayside Performance Rear Side Splitters Ford Focus 3 St Estate - Wayside Performance
    MAXTON® DESIGN

    Maxton Design Rear Side Splitters Ford Focus 3 St Estate

    £79.00
    £79.00
  • Spoiler Ford Focus Mk3 (Rs Look) - Wayside Performance Spoiler Ford Focus Mk3 (Rs Look) - Wayside Performance
    MAXTON® DESIGN

    Maxton Design Spoiler Ford Focus Mk3 (Rs Look)

    £240.00
    £240.00
  • Front Racing Splitter Focus St Mk3 Preface Model Version 2 - Wayside Performance Front Racing Splitter Focus St Mk3 Preface Model Version 2 - Wayside Performance
    MAXTON® DESIGN

    Maxton Design Front Racing Splitter V.2 compatible with Ford Focus ST Mk3

    £149.00
    £149.00
  • Fenders Extension Ford Focus St Mk3 (2012-2014) - Wayside Performance Fenders Extension Ford Focus St Mk3 (2012-2014) - Wayside Performance
    MAXTON® DESIGN

    Maxton Design Fenders Extension Ford Focus St Mk3 (2012-2014)

    £174.00
    £174.00
  • Spoiler Ford Focus Mk3 St Look - Wayside Performance Spoiler Ford Focus Mk3 St Look - Wayside Performance
    MAXTON® DESIGN

    Maxton Design Spoiler Ford Focus Mk3 St Look

    £154.00
    £154.00
  • Front Racing Splitter Focus St Mk3 Preface Version 1 - Wayside Performance Front Racing Splitter Focus St Mk3 Preface Version 1 - Wayside Performance
    MAXTON® DESIGN

    Maxton Design Front Racing Splitter V.1 compatible with Ford Focus ST Mk3

    £149.00
    £149.00
  • Rear Bumper Ford Focus Mk3 Preface (Focus Rs 2015 Look) - Wayside Performance Rear Bumper Ford Focus Mk3 Preface (Focus Rs 2015 Look) - Wayside Performance
    MAXTON® DESIGN

    Maxton Design Rear Bumper Ford Focus Mk3 Preface (Focus Rs 2015 Look)

    £274.00
    £274.00
  • Side Skirts Diffusers Ford Focus Mk3 St Facelift - Wayside Performance Side Skirts Diffusers Ford Focus Mk3 St Facelift - Wayside Performance
    MAXTON® DESIGN

    Maxton Design Side Skirts Diffusers Ford Focus Mk3 St Facelift

    £174.00
    £174.00
  • Front Splitter Focus St Mk3 Cupra Facelift Model - Wayside Performance Front Splitter Focus St Mk3 Cupra Facelift Model - Wayside Performance
    MAXTON® DESIGN

    Maxton Design Front Splitter Focus St Mk3 Cupra Facelift Model

    £174.00
    £174.00
  • Hybrid Front V.2 Focus St Mk3 (Facelift) - Wayside Performance Hybrid Front V.2 Focus St Mk3 (Facelift) - Wayside Performance
    MAXTON® DESIGN

    Maxton Design Hybrid Front V.2 Focus St Mk3 (Facelift)

    £279.00
    £279.00
  • Rear Diffuser Ford Focus 3 St (Facelift) - Wayside Performance Rear Diffuser Ford Focus 3 St (Facelift) - Wayside Performance
    MAXTON® DESIGN

    Maxton Design Rear Diffuser Ford Focus 3 St (Facelift)

    £139.00
    £139.00
  • Rear Side Splitters Ford Focus St Mk3 Fl - Wayside Performance Rear Side Splitters Ford Focus St Mk3 Fl - Wayside Performance
    MAXTON® DESIGN

    Maxton Design Rear Side Splitters Ford Focus St Mk3 Fl

    £79.00
    £79.00
  • Front Splitter V.1 Focus St Mk3 Facelift Model - Wayside Performance Front Splitter V.1 Focus St Mk3 Facelift Model - Wayside Performance
    MAXTON® DESIGN

    Maxton Design Front Splitter V.1 Focus St Mk3 Facelift Model

    £174.00
    £174.00
  • Front Racing Splitter V.3 Ford Focus 3 St (Facelift) - Wayside Performance Front Racing Splitter V.3 Ford Focus 3 St (Facelift) - Wayside Performance
    MAXTON® DESIGN

    Maxton Design Front Racing Splitter V.3 Ford Focus 3 ST (Facelift)

    £119.00
    £119.00
  • Front Racing Splitter Ford Focus St Mk3 Facelift - Wayside Performance Front Racing Splitter Ford Focus St Mk3 Facelift - Wayside Performance
    MAXTON® DESIGN

    Maxton Design Front Racing Splitter Ford Focus ST Mk3 Facelift

    £149.00
    £149.00
  • Front Racing Splitter V.3 Ford Focus 3 St (Facelift) - Wayside Performance Front Racing Splitter V.3 Ford Focus 3 St (Facelift) - Wayside Performance
    MAXTON® DESIGN

    Maxton Design Front Racing Splitter V.3 Ford Focus 3 St (Facelift)

    £234.00
    £234.00
  • Clubsport by Autospecialists Bolt-in Cage for Mk3 Focus Rs and St250 - Wayside Performance Clubsport by Autospecialists Bolt-in Cage for Mk3 Focus Rs and St250 - Wayside Performance
    AIRTEC Motorsport

    Clubsport by Autospecialists Bolt-in Cage for Mk3 Focus Rs and St250

    From £688.78
    From £688.78
  • Genuine Ford MK3 2.3 Ecoboost Ford Focus RS Airbox - Upgrade for MK3 Focus ST ST250 - Wayside Performance
    Genuine Ford

    Genuine Ford MK3 2.3 Ecoboost Ford Focus RS Airbox - Upgrade for MK3 Focus ST ST250

    £189.99
    £189.99

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Browse our focused MK3 Focus ST250 collections for detailed product recommendations, fitment advice and buying guides.