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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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  • 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
  • Focus RS MK3 Clutch & Flywheel Kit - Upgrade for MK3 Focus ST ST250 - Wayside Performance
    Genuine Ford

    Focus RS MK3 Clutch and Flywheel Kit - Upgrade for MK3 Focus ST ST250

    From £899.99
    From £899.99
    £999.99
  • Genuine Ford Focus MK3 RS Spark Plugs set of 4 - 2.3 & 2.0 Ecoboost - Wayside Performance
    Genuine Ford

    Genuine Ford Focus MK3 RS Spark Plugs set of 4 - 2.3 & 2.0 Ecoboost

    £59.99
    £59.99
  • Wayside Performance Logo Stickers x 3 - Wayside Performance
    Wayside Performance Ltd

    Wayside Performance Logo Stickers x 3

    £3.00
    £3.00
  • MK3 Focus ST ST250 Genuine Ford Service kit - Wayside Performance
    Genuine Ford

    MK3 Focus ST ST250 Genuine Ford Service kit

    From £139.99
    From £139.99
  • Maxton Design Rear Valance Ford Focus Mk3 St (Facelift) Rs-look (2015-2018) - Wayside Performance Maxton Design Rear Valance Ford Focus Mk3 St (Facelift) Rs-look (2015-2018) - Wayside Performance
    MAXTON® DESIGN

    Maxton Design Rear Valance Ford Focus Mk3 St (Facelift) Rs-look (2015-2018)

    £149.00
    £149.00
  • MK3 Focus ST ST250 and diesel front brake discs pair Genuine Ford - Wayside Performance
    Genuine Ford

    MK3 Focus ST ST250 and diesel front brake discs pair Genuine Ford

    £169.00
    £169.00
  • MK3 Focus ST ST250 and Diesel version Front brake pads Genuine Ford - Wayside Performance
    Genuine Ford

    MK3 Focus ST ST250 and Diesel version Front brake pads Genuine Ford

    £99.00
    £99.00
  • Airtec Motorsport Gearbox Torque Mount Upgrade for Focus Mk2 & Mk3 - Wayside Performance Airtec Motorsport Gearbox Torque Mount Upgrade for Focus Mk2 & Mk3 - Wayside Performance
    AIRTEC Motorsport

    Airtec Motorsport Gearbox Torque Mount Upgrade for Focus Mk2 & Mk3

    From £108.42
    From £108.42
  • Genuine Ford Focus MK3 RS 3 piece clutch kit - Wayside Performance Genuine Ford Focus MK3 RS 3 piece clutch kit - Wayside Performance
    Genuine Ford

    Genuine Ford Focus MK3 RS 3 piece clutch kit

    £399.00
    £399.00
  • Genuine Ford MK3 Focus ST ST250 2.0 Ecoboost Ignition Coil - Wayside Performance Genuine Ford MK3 Focus ST ST250 2.0 Ecoboost Ignition Coil - Wayside Performance
    Genuine Ford

    Genuine Ford MK3 Focus ST ST250 2.0 Ecoboost Ignition Coil

    From £54.99
    From £54.99
  • MK3 Focus ST ST250 Front Lambda O2 Sensor Genuine Bosch - Wayside Performance MK3 Focus ST ST250 Front Lambda O2 Sensor Genuine Bosch - Wayside Performance
    Bosch

    MK3 Focus ST ST250 Front Lambda O2 Sensor Genuine Bosch

    £129.99
    £129.99
  • Whiteline 35mm Lowering Springs Pre-Facelift PFL Ford Focus MK3 ST250 - Wayside Performance Whiteline 35mm Lowering Springs Pre-Facelift PFL Ford Focus MK3 ST250 - Wayside Performance
    Whiteline

    Whiteline 35mm Lowering Springs Pre-Facelift PFL Ford Focus MK3 ST250

    £199.00
    £199.00
  • Genuine Ford Rear Brake Pad Set for MK3 Focus ST ST250 - Wayside Performance
    Genuine Ford

    Genuine Ford Rear Brake Pad Set for MK3 Focus ST ST250

    £89.00
    £89.00
  • Focus MK3 ST RS NS Passenger Front Lower Suspension Arm Wishbone Genuine Ford - Wayside Performance Focus MK3 ST RS NS Passenger Front Lower Suspension Arm Wishbone Genuine Ford - Wayside Performance
    Genuine Ford

    Focus MK3 ST RS NS Passenger Side Front Lower Suspension Arm Wishbone Genuine Ford

    From £239.99
    From £239.99
  • Airtec Motorsport Downpipe Bracket for Focus Mk3 St/rs - Wayside Performance
    AIRTEC Motorsport

    Airtec Motorsport Downpipe Bracket for Focus Mk3 St/rs

    £109.99
    £109.99
  • MK3 Focus ST ST250 Rear brake discs pair Genuine Ford - Wayside Performance
    Genuine Ford

    MK3 Focus ST ST250 Rear brake discs pair Genuine Ford

    £129.99
    £129.99
  • Airtec Motorsport Bonnet Lifter Kit Ford Focus Mk3 (Incl. St/rs) - Wayside Performance Airtec Motorsport Bonnet Lifter Kit Ford Focus Mk3 (Incl. St/rs) - Wayside Performance
    AIRTEC Motorsport

    Airtec Motorsport Bonnet Lifter Kit Ford Focus Mk3 (Incl. St/rs)

    £93.74
    £93.74
  • Rear Valance Rs2015 Look Ford Focus Mk3 St (Preface) (2010-14) - Wayside Performance Rear Valance Rs2015 Look Ford Focus Mk3 St (Preface) (2010-14) - Wayside Performance
    MAXTON® DESIGN

    Maxton Design Rear Valance RS Look Ford Focus Mk3 St (Preface) (2010-14)

    £179.00
    £179.00
  • Focus MK3 ST 250 (FACELIFT) Stage 2 Airtec Intercooler upgrade with RS style scoop - Wayside Performance Focus MK3 ST 250 (FACELIFT) Stage 2 Airtec Intercooler upgrade with RS style scoop - Wayside Performance
    AIRTEC Motorsport

    Focus MK3 ST 250 Stage 2 Airtec Intercooler upgrade with RS style scoop

    £480.12
    £480.12
    £457.26
  • Focus MK3 ST RS OS Drivers side Front Lower Wishbone Suspension Arm Genuine Ford - Wayside Performance Focus MK3 ST RS OS Drivers side Front Lower Wishbone Suspension Arm Genuine Ford - Wayside Performance
    Genuine Ford

    Focus MK3 ST RS OS Drivers side Front Lower Wishbone Suspension Arm Genuine Ford

    From £239.99
    From £239.99
  • Wayside Performance WP-R MK3 Ford Focus ST250 3.5” induction kit - Wayside Performance Wayside Performance WP-R MK3 Ford Focus ST250 3.5” induction kit - Wayside Performance
    Wayside Performance Ltd

    Wayside Performance WP-R MK3 Ford Focus ST250 3.5” induction kit

    From £599.00
    From £599.00
    £495.00
  • NGK Iridium Uprated Spark Plugs for MK3 Focus RS 2.3 Ecoboost - Wayside Performance NGK Iridium Uprated Spark Plugs for MK3 Focus RS 2.3 Ecoboost - Wayside Performance
    NGK

    NGK Iridium Uprated Spark Plugs for MK3 Focus ST250 2.0 Ecoboost

    £54.99
    £54.99
  • MK3 Focus RS Genuine Ford dual mass flywheel - Wayside Performance MK3 Focus RS Genuine Ford dual mass flywheel - Wayside Performance
    Genuine Ford

    MK3 Focus RS Genuine Ford dual mass flywheel

    From £529.99
    From £529.99

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