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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Weapon R intake system

Weapon R

Weapon R 00-03 Ford Focus ZX3 DOHC Dragon Intake

Turbosmart auto part

Turbosmart

Turbosmart 12-19 Ford Focus ST(MK3) 2.0L EcoBoost Kompact Plumb Back Diverter Valve (Shortie)

Injen black cold air intake

Injen

Injen16-18 Ford Focus RS Wrinkle Black Cold Air Intake

Injen polished cold air intake

Injen

Injen 16-18 Ford Focus RS Polished Cold Air Intake

Mishimoto black catch can

Mishimoto

Mishimoto 2016+ Ford Focus RS Baffled Oil Catch Can Kit - Black

Turbosmart black auto part

Turbosmart

Turbosmart IWG75 Ford Focus RS (t) 2.5L 7 PSI Black Internal Wastegate Actuator

Mishimoto silver intercooler

Mishimoto

Mishimoto 2016+ Ford Focus RS Intercooler (I/C ONLY) - Silver

K&N Engineering intake system

K&N Engineering

K&N Performance Intake Kit for Ford C-Max/Focus II / Volvo C30/S40/V40/V50/V70 / Mazda 3/5

Injen black intercooler

Injen

Injen 13-18 Ford Focus ST L4 2.0L Turbo SES Intercooler Pipes Wrinkle Black

K&N Engineering intake system

K&N Engineering

K&N 12 Ford Focus 2.0L Typhoon Performance Intake

Weapon R intake system

Weapon R

Weapon R 03-06 Ford Focus 2.3L 4cyl Secret Weapon Intake

DeatschWerks fuel pump

DeatschWerks

DeatschWerks 340lph DW300C Compact Fuel Pump w/ Ford Focus MK2 RS Set Up Kit (w/o Mounting Clips)

DeatschWerks auto part

DeatschWerks

DeatschWerks Ford Focus MK2 ST/RS 05-10 1000cc Injectors - Set of 5

Mishimoto silver intercooler

Mishimoto

Mishimoto 2013+ Ford Focus ST Silver Intercooler w/ Polished Pipes

K&N Engineering red intake system

K&N Engineering

K&N 02-04 Ford Focus SVT Red Typhoon Short Ram Intake

K&N Engineering intake system

K&N Engineering

K&N Performance Intake Kit FORD FOCUS II ST 2.5L 20V TURBO

COBB red intake system

COBB

COBB Redline Carbon Fiber Intake System - 2013-2018 Ford Focus ST / 2016-2018 Ford Focus RS

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Nitrous Express

Nitrous Express - FORD 4 CYL NITROUS PLATE SYSTEM-2.3L ECOBOOST W/ 12LB BOTTLE - 20954-12

Mishimoto black intercooler

Mishimoto

Mishimoto 2013+ Ford Focus ST Silver Intercooler w/ Black Pipes

Mishimoto intercooler

Mishimoto

Mishimoto 2013+ Ford Focus ST Intercooler (I/C ONLY) - Gold

K&N Engineering polished intake system

K&N Engineering

K&N Performance Intake Kit TYPHOON; FORD FOCUS, L4-2.3L, 03-07 (POLISHED)

Mishimoto black intercooler

Mishimoto

Mishimoto 2016+ Ford Focus RS Hot Side Intercooler Pipe - Black

Mishimoto black intercooler

Mishimoto

Mishimoto 2013+ Ford Focus ST Gold Intercooler w/ Black Pipes

Injen black cold air intake

Injen

Injen 12 Ford Focus 2.0L 4cyl Black Air Intake w/ MR Tech, Web Nano-Fiber Dry Filter & Heat Shield

Radium Engineering auto part

Radium Engineering

Radium Engineering 2013+ Ford Focus ST/ 16+ Focus RS Port Injection Kit

COBB black auto part

COBB

Cobb 13-18 Ford Focus ST Sound Symposer Delete - Stealth Black

Nitrous Express auto part

Nitrous Express

Nitrous Express - FORD EFI DUAL NOZZLE (100-300HP) WITH COMPOSITE BOTTLE - 20115-12

Volant cold air intake

Volant

Closed Box Air Intake w/ Cold Air Scoop 04-08 Ford F-150 5.4L V8 Volant

Turbosmart auto part

Turbosmart

Turbosmart BOV Kompact VR09 Plumb Back Ford Fiesta 1.0L Ecoboost

Turbosmart black auto part

Turbosmart

Turbosmart 2015+ Ford Mustang Ecoboost Boost Reference Adapter - Black

Go Fast Bits auto part

Go Fast Bits

GFB Diverter Valve DV+ 2017+ Ford Focus RS

Mishimoto blue cold air intake

Mishimoto

Mishimoto 2016 Ford Focus RS 2.3L Performance Air Intake Kit - Wrinkle Nitrous Blue

K&N Engineering intake system

K&N Engineering

K&N 07-09 Ford Focus L4-2.0L Typhoon Short Ram Intake

Go Fast Bits auto part

Go Fast Bits

GFB VTA Blow off Valve 2012+ Ford Focus ST 2.0L Ecoboost (AU Spec)

Injen black intake system

Injen

Injen 13-14 Ford Focus ST 2.0L (t) 4cyl Black Short Ram Intake w/MR Tech & Heat Shield

COBB cold air intake

COBB

Cobb 13-15 Ford Focus ST Cold Air Intake Adapter

DeatschWerks auto part

DeatschWerks

DeatschWerks Ford Focus MK2 ST/RS 05-10 650cc Injectors - Set of 5

Mishimoto polished cold air intake

Mishimoto

Mishimoto 13-16 Ford Focus ST 2.0L Performance Air Intake Kit - Polished

Turbosmart auto part

Turbosmart

Turbosmart BOV Kompact Dual Port - 2016 Ford Focus RS 2.3L

Go Fast Bits auto part

Go Fast Bits

GFB Diverter Valve DV+ Suits Ford / Volvo / Porsche / Borg Warner Turbos (Direct Replacement)

Radium Engineering catch can

Radium Engineering

Radium Engineering Catch Can Kit Crankcase 2016+ Focus RS Fluid Lock

K&N Engineering intake system

K&N Engineering

K&N 13 Ford Focus ST L4-2.9L F/I Typhoon Performance Intake

K&N Engineering polished intake system

K&N Engineering

K&N 02-03 Ford Focus SVT Polished Typhoon Short Ram Intake

Ford Racing cold air intake

Ford Racing

Ford Racing 16-17 Focus RS Cold Air Intake Box

Mishimoto black intercooler

Mishimoto

Mishimoto 2016+ Ford Focus RS Intercooler Pipe Kit - Black

Nitrous Express auto part

Nitrous Express

Nitrous Express - ALL FORD EFI SINGLE NOZZLE SYSTEM WITH COMPOSITE BOTTLE - 20922-12

COBB silver intercooler

COBB

Cobb 16-18 Ford Focus RS Front Mount Intercooler - Silver

Spectre chrome auto part

Spectre

Spectre Air Flow Sensor Mount 3in. w/Collar - Chrome

K&N Engineering auto part

K&N Engineering

K&N Ford/GM/Dodge Throttle Control Module

Weapon R intake system

Weapon R

Weapon R 02-04 Ford Focus SVT 2.0L Dragon Intake

Go Fast Bits auto part

Go Fast Bits

GFB VTA Valve 2016+ Ford Focus RS

DeatschWerks fuel pump

DeatschWerks

DeatschWerks Ford Focus MK2 RS DW65C 265lph Compact In-Tank Fuel Pump w/Install Ki

Mishimoto silver intercooler

Mishimoto

Mishimoto 2016+ Ford Focus RS Performance Intercooler Kit - Silver

Snow Performance auto part

Snow Performance

Snow Performance Stg 2 Boost Cooler 13-18 Ford Focus ST Water Inj Kit (SS Braided Line/4AN Fittings)

Weapon R polished intake system

Weapon R

Weapon R 03 Ford Focus SVT 2.0L Dragon Intake Polished

Mishimoto black cold air intake

Mishimoto

Mishimoto 13-16 Ford Focus ST 2.0L Performance Air Intake Kit - Wrinkle Black

COBB intercooler

COBB

Cobb 13-18 Ford Focus ST V2 Front Mount Intercooler

Mishimoto black intercooler

Mishimoto

Mishimoto 2016+ Ford Focus RS Intercooler (I/C ONLY) - Black

COBB cold air intake

COBB

COBB Cold Air Intake - 2013-2018 Ford Focus ST

Ford Racing auto part

Ford Racing

Ford Racing 13-17 Focus ST FR1 Power Upgrade Pack

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