Let's find your parts. Start with your car.

Let's find your parts.
Start with your car.

Search

MK3 Ford Focus RS Performance Parts

Upgrade your MK3 Ford Focus RS with performance and replacement parts from AIRTEC Motorsport, Cobra Sport, Forge Motorsport, Genuine Ford, Maxton Design, Milltek, Scorpion and Wayside Performance.

Browse induction kits, intercoolers, exhaust systems, cooling upgrades, clutches, brakes, suspension, servicing parts and styling upgrades for the 2.3-litre EcoBoost Focus RS.

Not sure where to begin?

Read our MK3 Focus RS tuning guide for Stage 1 and Stage 2 hardware recommendations, expected power figures and advice based on our in-house dyno tuning experience.

Shop MK3 Focus RS Parts by Category

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

Clear all filters

Showing 109 of 109 products

Sort by:
Filter and sort

Filter and sort

Showing 109 of 109 products

Clear all filters
Clear all filters
Showing 109 of 109 products
  • MK3 Focus RS / MK3 Focus ST ST250 Clutch Slave Cylinder - Genuine Ford - Wayside Performance
    Genuine Ford

    MK3 Focus RS / MK3 Focus ST ST250 Clutch Slave Cylinder - Genuine Ford

    £129.99
    £129.99
  • Airtec Motorsport Quick Shift for Mk3 Focus St/rs - Wayside Performance Airtec Motorsport Quick Shift for Mk3 Focus St/rs - Wayside Performance
    AIRTEC Motorsport

    Airtec Motorsport Quick Shift for Mk3 Focus St/rs

    £104.99
    £104.99
  • MK3 Focus ST ST250 Waterpump Genuine Ford - Wayside Performance
    Genuine Ford

    MK3 Focus ST ST250 Waterpump Genuine Ford

    £99.99
    £99.99
  • Side Skirts Diffusers Ford Focus Mk3 Rs, Mk 3.5 St, Mk 3 St - Wayside Performance Side Skirts Diffusers Ford Focus Mk3 Rs, Mk 3.5 St, Mk 3 St - Wayside Performance
    MAXTON® DESIGN

    Maxton Design Side Skirts Diffusers Ford Focus Mk3 Rs, Mk 3.5 St, Mk 3 St

    £174.00
    £174.00
  • Airtec Motorsport Induction Pipe for Focus Rs Mk3 - Wayside Performance Airtec Motorsport Induction Pipe for Focus Rs Mk3 - Wayside Performance
    AIRTEC Motorsport

    Airtec Motorsport Induction Pipe for Focus Rs Mk3

    From £93.74
    From £93.74
  • Airtec Motorsport De-cat Downpipe for Mk3 Focus Rs - Wayside Performance Airtec Motorsport De-cat Downpipe for Mk3 Focus Rs - Wayside Performance
    AIRTEC Motorsport

    Airtec Motorsport De-cat Downpipe for Mk3 Focus Rs

    £226.48
    £226.48
  • MK3 Focus RS Brembo Front brake calliper brake spring clip and pin kit Genuine Ford - Wayside Performance
    Genuine Ford

    MK3 Focus RS Brembo Front brake calliper brake spring clip and pin kit Genuine Ford

    £54.99
    £54.99
  • Airtec Motorsport Rear Diffuser Extension for Focus Rs Mk3 - Wayside Performance Airtec Motorsport Rear Diffuser Extension for Focus Rs Mk3 - Wayside Performance
    AIRTEC Motorsport

    Airtec Motorsport Rear Diffuser Extension for Focus Rs Mk3

    £63.25
    £63.25
  • Airtec Motorsport Focus Mk3 Rear Diff Cooler - Wayside Performance Airtec Motorsport Focus Mk3 Rear Diff Cooler - Wayside Performance
    AIRTEC Motorsport

    Airtec Motorsport Focus Mk3 Rear Diff Cooler

    £85.03
    £85.03
  • Ford Focus MK3 Focus ST ST250 2.0 Ecoboost fuel injector with uprated filter - Wayside Performance
    Genuine Ford

    MK3 Focus RS Fuel Injector Genuine Ford

    From £129.99
    From £129.99
  • Racing Durability Rear Diffuser Ford Focus Rs Mk3 (2015-2018) - Wayside Performance Racing Durability Rear Diffuser Ford Focus Rs Mk3 (2015-2018) - Wayside Performance
    MAXTON® DESIGN

    Maxton Design Racing Durability Rear Diffuser Ford Focus Rs Mk3 (2015-2018)

    From £149.00
    From £149.00
  • Pro Hoses Two-piece Induction Hose Kit for Focus Rs Mk3 - Wayside Performance Pro Hoses Two-piece Induction Hose Kit for Focus Rs Mk3 - Wayside Performance
    AIRTEC Motorsport

    Pro Hoses Two-piece Induction Hose Kit for Focus Rs Mk3

    From £69.99
    From £69.99
  • Airtec Motorsport Stage 3+ Induction Kit for Focus Rs Mk3 - Wayside Performance Airtec Motorsport Stage 3+ Induction Kit for Focus Rs Mk3 - Wayside Performance
    AIRTEC Motorsport

    Airtec Motorsport Stage 3+ Induction Kit for Focus Rs Mk3

    £573.02
    £573.02
  • Mk3 Ford Focus RS De-Cat Pipe - SFDC082 - Wayside Performance
    Scorpion

    Mk3 Ford Focus RS Scorpion De-Cat Pipe

    £229.00
    £229.00
  • Genuine Ford

    MK3 Focus RS rear brake backing plates - Pair

    £79.99
    £79.99
  • Genuine Ford Focus Mk3 RS Rear Suspension Shock Absorber - Wayside Performance Genuine Ford Focus Mk3 RS Rear Suspension Shock Absorber - Wayside Performance
    Genuine Ford

    Genuine Ford Focus Mk3 RS Rear Suspension Shock Absorber

    £425.00
    £425.00
    £561.00
  • Focus MK3 ECU Cover Bolts x 4 - Wayside Performance
    Genuine Ford

    Focus MK3 ECU Cover Bolts x 4

    £34.99
    £34.99
  • Racing Durability Rear Side Splitters Ford Focus Rs Mk3 (2015-2018) - Wayside Performance Racing Durability Rear Side Splitters Ford Focus Rs Mk3 (2015-2018) - Wayside Performance
    MAXTON® DESIGN

    Maxton Design Racing Durability Rear Side Splitters Ford Focus Rs Mk3 (2015-2018)

    From £69.00
    From £69.00
  • Airtec Motorsport Intercooler Upgrade & Big Boost Pipe Package for Mk3 Focus Rs - Wayside Performance Airtec Motorsport Intercooler Upgrade & Big Boost Pipe Package for Mk3 Focus Rs - Wayside Performance
    AIRTEC Motorsport

    Airtec Motorsport Intercooler Upgrade & Big Boost Pipe Package for Mk3 Focus Rs

    £1,014.65
    £1,014.65
  • Mk3 Ford Focus RS Scorpion Sports-Cat Pipe - SFDX082 - Wayside Performance
    Scorpion

    Mk3 Ford Focus RS Scorpion Sports-Cat Pipe

    £549.00
    £549.00
    £614.08
  • Genuine Ford MK3 Focus RS rear differential and front transfer box oil servicing image showing oil containers and tools.
    Genuine Ford

    MK3 Focus RS Rear Differential and Front Transfer Box Oil

    £64.99
    £64.99
  • MK3 Focus RS High Pressure Fuel Pump Genuine Ford 2.3 Ecoboost - Wayside Performance
    Genuine Ford

    MK3 Focus RS High Pressure Fuel Pump Genuine Ford 2.3 Ecoboost

    £449.00
    £449.00
  • Racing Durability Front Splitter V2 Ford Focus Rs Mk3 (2015-2018) - Wayside Performance Racing Durability Front Splitter V2 Ford Focus Rs Mk3 (2015-2018) - Wayside Performance
    MAXTON® DESIGN

    Maxton Design Racing Durability Front Splitter V2 Ford Focus Rs Mk3 (2015-2018)

    From £179.00
    From £179.00
  • Pro Hoses Two-piece Coolant Hose Kit for Focus Rs Mk3 - Wayside Performance Pro Hoses Two-piece Coolant Hose Kit for Focus Rs Mk3 - Wayside Performance
    AIRTEC Motorsport

    Pro Hoses Two-piece Coolant Hose Kit for Focus Rs Mk3

    From £103.99
    From £103.99

Shop MK3 Focus RS Parts by Category

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