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
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
CATEGORIES
Top product categories for the Ford Focus
BRANDS
Top brands for Ford Focus builds
READY TO BUILD YOUR FORD FOCUS?
Pick your year and trim to shop verified-fit Ford Focus parts.
Shop all Ford Focus parts →Verified Fitment
Ford Focus Category:engines and components Parts
699 parts available
Shop aftermarket parts for the Ford Focus. Verified fitment, free shipping, 30-day returns.

Supertech
Supertech Ford Focus Zetec 2.0L Black Nitrided Intake Valve - Single

Supertech
Supertech Ford Focus Zetec 2.0L Black Nitrided Intake Valve - +2mm Oversize - Single

Supertech
Supertech Ford Ecoboost 2.3L Black Nitrided Intake Valve - STD Size - Single

Wiseco
Wiseco 83.50MM RING SET Ring Shelf Stock

Clevite
Clevite Ford 4 2.3L DOHC 2003-2009 Performance Con Rod Bearing Set

ACL
ACL AU- Ford Prod. 4 2.0L Zetec 1995-04 Engine Connecting Rod Bearing Set

ACL
ACL Ford Prod. 4 2.0L Duratec 2005-on Engine Connecting Rod Bearing Set

ACL
ACL Mazda 4 2209cc Diesel 1982-85 Engine Crankshaft Main Bearing Set

ACL
ACL AU- Ford Prod. 4 2.0L Zetec 1995-04 Engine Connecting Rod Bearing Set

ACL
ACL 95-04 Ford 4 2.0L Zetec 0.75mm Oversized Rod Bearing Set

ACL
ACL AU- Ford Prod. 4 2.0L Zetec 1995-04 Engine Connecting Rod Bearing Set

ACL
ACL 95-04 Ford 4 2.0L Zetec Standard Size Rod Bearing Set

ACL
ACL 95-04 Ford 4 2.0L Zetec 0.50mm Oversized Rod Bearing Set

ACL
ACL 95-04 Ford 4 2.0L Zetec 0.25mm Oversized Rod Bearing Set

aFe
aFe Pro GUARD D2 Oil Filter 2.9in OD x 2.9in HT

aFe
aFe 06-15 Mazda MX-5 Miata ProGuard HD Oil Filter - 4 Pack
Italian RP
Italian RP - IRPR065

Mahle
Mahle Engine Crankshaft Main Bearing Set MS-2245A-.25MM
STANDARD IGN
ENGINE VARIABLE VALVE TIMING SPROCK
DAYCO HYDRAULIC
BALANCER
STANDARD IGN
ENGINE VVT SPROCKET
STANDARD IGN
ENGINE VVT SPROCKET

SEALED POWER
RE-RING KIT PRM. RINGS

SEALED POWER
MAIN BEARING SET

STANDARD IGN
VEHICLE SPEED SENSOR
MOTORAD
COOLANT TEMPERATURE SENDER

SEALED POWER
BLOCK KIT WITH PREM RINGS

SEALED POWER
MAIN BEARING SET
ATK ENGINES
FORD 2.0 2000-04 FWD ENG
CARVER
99-00 BOSTON WHALER DTS. 14 W/BOW R
ATK ENGINES
FORD 2.0 02-03 SVT ENG
ATK ENGINES
FORD 2.0 2000-04 CYL HEAD
ATK ENGINES
FORD 2.0 02-03 SVT HEAD
ATK ENGINES
FORD 1.6 11-13 CYL HEAD
ATK ENGINES
FORD 07-09 RGT KNEE

ATK ENGINES
FORD 2.0 12-14 GDI HEAD
ATK ENGINES
FORD 1.6 EOBOOST GDI HEAD
ATK ENGINES
FORD 1.6 ECOBOOST GDI HEAD

Crower
Valve Springs - 1.045
CP-E (Custom Performance Engineering)
cp-e MZR 2.3 DISI SAFEseal Injector Seals Mazdaspeed3 2007-2013 / Mazdaspeed6 2006-2007

Mountune, LLC (USA)
mountune Oil Control Baffle w/ Balance Shaft Delete 2013-2014 Focus ST
Trans-Dapt
SWAP IN A BOX KIT: LS TH350/700R4 I
SCE Gaskets
DYNO PAK FORD 2.3L MOLDED VALV E COVER
Dana
BRAKE ASSY
Derale
TIMING KIT' 99 - 04 FORD 2.0L

Ferrea Racing
Ferrea Ford EcoBoost 2.3L 30.5mm 5.46mm 104.75mm 25 Deg Taper Flo +.5mm Comp Plus Exh Valve-Set of 8

Ferrea Racing
Ferrea Ford EcoBoost 2.3L 33mm 5.47mm 103.55mm 22 Deg S-Flo +.5mm Comp Plus Intake Valve - Set of 8
Cloyes Gear & Products
TIMING BELT

Dorman
HARMONIC BALANCER

Ferrea Racing
Ferrea Ford Zetec ZX3 32mm 6.03mm 97.55mm 25 Deg S-Flo Stock Comp Plus Intake Valve - Set of 8

UPR Products
~(1 lbs. 14X8X6)~ 16-17 Focus RS 2.3 - Black

Dorman
CAM PHASER
Dorman
HARMONIC BALANCER ASSEMBLY

Ferrea Racing
Ferrea Ford EcoBoost 2.3L 30mm 5.46mm 104.75mm 25 Deg Taper Flo Stk Comp Plus Exhaust Valve-Set of 8

WIX
WIX XP OIL FILTER

Kelford Cams
Kelford FORD DURATEC 2.0L BEEHIVE SPRING SET

Ferrea Racing
Ferrea Ford EcoBoost 2.3L 32.5mm 5.47mm 103.55mm 22 Deg S-Flo Stk Comp Plus Intake Valve - Set of 8

Ferrea Racing
Ferrea Ford Zetec ZX3 33mm 5.5mm 25 Deg S-Flo +1mm Competition Plus Intake Valve - Set of 8

Ferrea Racing
Ferrea Ford Coyote 5.0L Single Beehive Ovate Valve Spring - Set of 32

Ferrea Racing
Ferrea Ford ZX2 Single & Double Spring 7 Deg Pro CNC Titanium Retainer - Set of 16
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