ST AND RS — FORD'S HOT HATCH

From the original SVT Focus to the EcoBoost ST and RS — Ford's compact performance answer.

Ford Focus HERITAGE

FORD'S HOT-HATCH HERITAGE

The Ford Focus became Ford's compact-platform performance car. The original SVT Focus (2002–2004) launched the lineage; the EcoBoost-era ST (2.0L turbo) brought it mainstream; the limited Focus RS (2.3L EcoBoost with AWD) became the hot-hatch enthusiasts begged for.

MOTORMIA Focus builds split between SVT first-gens, ST 2.0T bolt-ons, and RS AWD turbo monsters with stage-3 tunes, fuel-system upgrades, and built turbos. The EcoBoost engine shares aftermarket with the Mustang EcoBoost.

Ford Focus ON MOTORMIA

THE NUMBERS

2,833
Parts that fit
2,000+
MOTORMIA Builds
EBC
#1 brand by SKUs
$551
Average MSRP

READY TO BUILD YOUR FORD FOCUS?

Pick your year and trim to shop verified-fit Ford Focus parts.

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Verified Fitment

Ford Focus Category air and fuel Parts

642 parts available

Shop aftermarket parts for the Ford Focus. Verified fitment, free shipping, 30-day returns.

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Extreme Turbo Systems red intercooler

Extreme Turbo Systems

ETS Intercooler Red Finish Ford Focus RS

Extreme Turbo Systems silver intercooler

Extreme Turbo Systems

ETS Front Mount Intercooler Silver Ford Focus RS 2016

Extreme Turbo Systems titanium intake system

Extreme Turbo Systems

ETS Subaru WRX 22 Titanium Intake

FOCUS ST RS WING RISER KIT - RED

Boomba Racing

FOCUS ST RS WING RISER KIT - RED

FORD 2.0 EB BLOW OFF VALVE - RED

Boomba Racing

FORD 2.0 EB BLOW OFF VALVE - RED

B

Bosch

ASSEMBLY CONTROL BOX (ELEC.)

OXYGEN SENSOR

Bosch

OXYGEN SENSOR

GDI FUEL INJECTOR

Bosch

GDI FUEL INJECTOR

FUEL PUMP ASSEMBLY

Bosch

FUEL PUMP ASSEMBLY

B

Bosch

FUEL PUMP ASSEMBLY

FUEL PUMP ASSEMBLY

Bosch

FUEL PUMP ASSEMBLY

FUEL FEED UNIT

Hella

FUEL FEED UNIT

DeatschWerks Power Sports Fuel Injectors Polaris Ranger 800 2011-2014 RZR 800 2011-2014

DeatschWerks

DeatschWerks Power Sports Fuel Injectors Polaris Ranger 800 2011-2014 RZR 800 2011-2014

FUEL PUMP UNIT

Hella

FUEL PUMP UNIT

INTL INTAKE KIT FORD

K&N Engineering

INTL INTAKE KIT FORD

K

K&N Engineering

GEN2 INTAKE KIT SUBARU

K

K&N Engineering

FORD FOCUS 1.8I/2.0I

INTL INTAKE KIT FORD

K&N Engineering

INTL INTAKE KIT FORD

FORD 2.0 EB BLOW OFF VALVE - BLACK

Boomba Racing

FORD 2.0 EB BLOW OFF VALVE - BLACK

FUEL INJECTION PRESSURE SENSOR

NGK

FUEL INJECTION PRESSURE SENSOR

Ford Racing black intercooler

Ford Racing

INTERCOOLER - BLACK FOCUS

Bosch auto part

Bosch

TIRE BEAD SEATER

Bosch fuel pump

Bosch

FUEL PUMP ASSEMBLY

Boomba Racing red auto part

Boomba Racing

CIVIC X WING RISERS - RED

FUEL FILLER NECK

Dorman

FUEL FILLER NECK

NTK O2 SENSOR WIDEBAND A/F

NGK

NTK O2 SENSOR WIDEBAND A/F

Boomba Racing Ford Fusion 1.6/2.0/AWD Rear Motor Mount-Blue

Boomba Racing

Boomba Racing Ford Fusion 1.6/2.0/AWD Rear Motor Mount-Blue

FORD 2.0 EB BLOW OFF VALVE - BLUE

Boomba Racing

FORD 2.0 EB BLOW OFF VALVE - BLUE

B

Boomba Racing

CIVIC X WING RISERS - BLUE

Boomba Racing black auto part

Boomba Racing

FORD 2.0 EB ADJUSTABLE BOV - BLACK

NTK MASS AIR FLOW SENSOR

NGK

NTK MASS AIR FLOW SENSOR

NTK EA0001 PRESSURE SENSOR

NGK

NTK EA0001 PRESSURE SENSOR

Boomba Focus RS Blow Off Valve-Black

Boomba Racing

Boomba Focus RS Blow Off Valve-Black

B

Boomba Racing

Boomba Racing Mustang Ecoboost Full Recirculating Bypass Valve-Natural

FUEL FEED UNIT

Hella

FUEL FEED UNIT

B

Boomba Racing

Boomba Racing Mustang Ecoboost/V6 Rear Vertical Links-Black

FUEL INJECTION PRESSURE SENSOR

NGK

FUEL INJECTION PRESSURE SENSOR

Boomba Racing SRT-4 Fuel Rail Black

Boomba Racing

Boomba Racing SRT-4 Fuel Rail Black

VC-MAF/25 COMBO

Snow Performance

VC-MAF/25 COMBO

B

Boomba Racing

Boomba Racing Rear Motor Mount Red Ford Focus ST 2013

B

Boomba Racing

TYPE R STAGE 1 CATCH CAN KIT - BLUE

B

Boomba Racing

FORD 2.0L 2.3L EB INTAKE MANIFOLD SPACER - NATURAL

B

Boomba Racing

STI 75MM THROTTLE BODY - BOLT ON - NATURAL

FUEL PUMP MODULE

Bosch

FUEL PUMP MODULE

B

Boomba Racing

FORD 2.0 EB ADJUSTABLE BOV - NATURAL

SWITCHOVER VALVE MODULE

Hella

SWITCHOVER VALVE MODULE

OXYGEN SENSOR 4 WIRE DIRECT FIT H

Denso

OXYGEN SENSOR 4 WIRE DIRECT FIT H

B

Boomba Racing

FOCUS RS BYPASS VALVE - BLUE

Boomba Racing blue auto part

Boomba Racing

FORD 2.0 EB ADJUSTABLE BOV - BLUE

Boomba Racing red auto part

Boomba Racing

FORD 2.0 EB ADJUSTABLE BOV - RED

FUEL PUMP ASSEMBLY

Bosch

FUEL PUMP ASSEMBLY

OXYGEN SENSOR

Bosch

OXYGEN SENSOR

Ford Racing air filter

Ford Racing

FILTER PERFORMANCE FOCUS 16-17

B

Bosch

R410A MANIF 60' ENVIRO 45 VALVES

FORD 2.0 EB BLOW OFF VALVE - NATURAL

Boomba Racing

FORD 2.0 EB BLOW OFF VALVE - NATURAL

OXYGEN SENSOR

Bosch

OXYGEN SENSOR

K

K&N Engineering

Cold Air Induction Ram Air: 2003-2004 Ford Focus; 63 Series Air Charger Intake Kits

D

Dorman

FUEL TANK

FUEL PUMP

Walbro

FUEL PUMP

FUEL PUMP

Walbro

FUEL PUMP

FAQ

Frequently Asked Questions About the Ford Focus

What are the best aftermarket parts brands for the Ford Focus?

The top brands MOTORMIA owners trust for Ford Focus builds are EBC, PowerStop, Mishimoto, Magnaflow, and H&R. The catalog carries 2,833 parts that fit the Focus. Use the fitment selector to filter to your specific year and trim, then browse by category or brand.

What's the best trim or sub-model of the Ford Focus to modify?

The most-modified Focus trims are SVT Focus, ST, RS. These trims typically came with performance-focused suspension, brakes, and engine options that give a higher starting point. That said, the Focus's engine family (Zetec 2.0 (SVT), 2.0L EcoBoost (ST), 2.3L EcoBoost (RS)) shares aftermarket across most trims, so base-trim builds with the right bolt-ons can match higher trims on power.

What's the typical mod path for a Ford Focus?

For most Ford Focus builds, the recommended modification order is: ECU tune → intake → downpipe → turbo upgrade → fuel system. This sequence stages upgrades so each mod supports the next — tuning unlocks gains from intake/exhaust, suspension keeps the added power planted. MOTORMIA member builds let you see exact part lists for Ford Focus builds at every power level.

How does the Ford Focus aftermarket compare to the Volkswagen Golf GTI / Honda Civic Si?

The Ford Focus is Ford's compact hot-hatch with the SVT, ST, and RS performance variants. On MOTORMIA, 2,833 parts fit the Focus across 2,000+ active member builds, with an average part MSRP of $551. The decision usually comes down to which platform you own — both have full bolt-on catalogs.

Will any Ford Focus part fit my year and trim?

Not always. The Ford Focus has had multiple generations and engine changes (e.g., Zetec 2.0 (SVT), 2.0L EcoBoost (ST), 2.3L EcoBoost (RS)), and parts are generation- and trim-specific. MOTORMIA's catalog uses verified fitment data — every product page shows exactly which years and submodels of the Focus a part fits. Use the fitment selector at the top of any page to pre-filter to your build.

Does MOTORMIA offer returns on Ford Focus parts?

Yes. Most Ford Focus parts on MOTORMIA are eligible for our 30-day return policy provided they're unused, uninstalled, and in original packaging. Special-order parts are flagged with a "Special Order" badge on the product page. Manufacturer warranties are processed through MOTORMIA on your behalf.

MOTORMIA APP

Build your Ford Focus with Mia

Personalized Ford Focus mod recommendations, verified fitment from real Focus owners, and a garage that tracks every part on your build.

  • Mod recommendations tuned to your Focus year, trim, and submodel
  • Verified fitment data from 2,000+ Ford Focus member builds
  • Performance gain estimates based on real-world results
  • Save your garage and track every part you've installed