THE WRX FOUNDATION
The base platform that gave the world the WRX and STI — and a strong tuner scene of its own.
Subaru Impreza HERITAGE
THE BOXER-AWD COMPACT
MOTORMIA Impreza builds include rally-spec dirt cars, autocross weekend cars, daily-driver Outback Sport conversions, and budget tuner builds. Many WRX bolt-on parts (intakes, exhausts, suspension) cross-fit the Impreza chassis with minor adapters.
Subaru Impreza ON MOTORMIA
THE NUMBERS
CATEGORIES
Top product categories for the Subaru Impreza
BRANDS
Top brands for Subaru Impreza builds
READY TO BUILD YOUR SUBARU IMPREZA?
Pick your year and trim to shop verified-fit Subaru Impreza parts.
Shop all Subaru Impreza parts →Verified Fitment
Subaru Impreza Category:engines and components Parts
789 parts available
Shop aftermarket parts for the Subaru Impreza. Verified fitment, free shipping, 30-day returns.
JE Pistons
SUB EJ25 ULTRA SERIRES 9.5

Subaru
Subaru OEM STI Short Block Subaru STI 2018 Type RA / 2019
Clevite
ENGINE CYLINDER HEAD GASKET SET

Clevite
MAIN BEARING SET
Mahle
*USE: MCIMS-2258HX PER Gaskets Short Block Set Dodge Trk. (5.7L) 2007
JE Pistons
BOD-SUB EJ22 STROKER INV DME -22CC

NGK
EN VAR TIME SOLENOID

Carrillo
Sport Compact Rod Subaru FA20 CC (in) (mm) 5.09 Style PRO-H Bolt Size 3 8 Pin Width (in)(mm) 0.843 21.41 Big Width (in)(mm) 0.843 21.41 Big Bore (in)(mm) 2.08666 53 Pin Bore 22mm (SET OF 4 )
Subaru
STI WRX timing belt
JE Pistons
SUBARU EJ257 WRX/STI 4V DISH -19CC

JE Pistons
SUBARU EJ257 WRX/STI 4V DISH -19CC
JE Pistons
SUBARU EJ20 R/DOME 6576M925

Subaru
Subaru BLOCK SET CYL

Subaru
Subaru OEM Forged Salt Bath Nitrated Crankshaft Subaru WRX 2006-2014 / STI 2004
Manley Performance
Manley Performance Valve-Custom TI .3415
JE Pistons
SUB EJ25 95-98 KIT

JE Pistons
SUB EJ25 95-98 KIT

JE Pistons
SUB WRX HD/STI KIT

JE Pistons
TOYTA 3TC 1.8L W/ 63CC HEAD, 86MM B
Clevite
PISTON WITH RINGS
Clevite
STARTER MOTOR 24V 4.5KW
Gates
Gates Premium Engine Water Pump

Fluidampr
OLDSMOBILE DAMPER RING
JE Pistons
SUB WRX HD/STI KIT
Clevite
CYL SLEEVE ASSEMBLY

JE Pistons
UX 92.00MM 1.0/1.2/2.8 DLC

JE Pistons
UX 93.00MM 1.0/1.2/2.8 DLC
Company23
Company23 SOHC Water Pump Kit - 06-11 Impreza 06-10 Forester (06 MT only) 06-12 Legacy (not 2.5GT) 06-12 Outback
JE Pistons
SUB WRX HD/STI KIT
HKS
HKS Camshaft EJ207 264 EX
Brian Crower
LEFT INTAKE

JE Pistons
SUB STI EJ257+10 KIT

Killer B Motorsport
Killer B Motorsport Air Oil Separator Barebones Kit Subaru STI 2008 / Subaru WRX 2008-2014
Clevite
OVERHAUL KIT

ACL
ACL Bearings IAG BULK PACK (80 pcs) Subaru 4 EJ20/EJ22/EJ25 Race Series

JE Pistons
HD2 MITSUBISHI EVO 4-9
JE Pistons
SUBARU EJ257 WRX/STI 4V DISH -24CC

NGK
NTK VV0047 VVT SOLENOID

NGK
NTK VV0045 VVT SOLENOID

Subaru
Subaru OEM Piston Ring Set Subaru STI 2008
JE Pistons
SUBARU EJ257 WRX/STI 4V DISH -15CC

Clevite
Clevite Subaru EJ Series 1990-2005 Main Bearing Set

JE Pistons
SUB EJ25 ULTRA SERIRES8.5
JE Pistons
SUBARU EJ20 ULTRA SERIES 9.5:1

JE Pistons
MITS TURBO DISH -10CC 1.378 X 86.0
Carrillo
SMALL BLOCK FORD FLAT TOP -8.7CC ALL 20 DEG. TFS TWISTED 4.030 BORE 4.000 STROKE 6.200 ROD 62CC HEAD 11.3 TO 1 COMP

JE Pistons
SUB EJ25 ULTRA SERIES 8.5:1
JE Pistons
SUBARU EJ20 STROKER ULTRA SERIES 8.
JE Pistons
SUBARU EJ20 ULTRA SERIES 8.5:1
Clevite
ENGINE CYLINDER HEAD SPACER SHIM
JE Pistons
SUB EJ25 ULTRA SERIRES8.5
JE Pistons
SUBARU EJ20 ULTRA SERIES 9.5:1
Denso
MANIFOLD ABSOLUTE PRESSURE SENSOR

JE Pistons
SUB EJ25 ULTRA SERIRES 9.5

Carrillo
BC21-5706-IMCA

GrimmSpeed
GrimmSpeed Subaru Black Lightweight Crank Pulley
GrimmSpeed
GrimmSpeed 08-10+ WRX / 05-09 LGT RED Air Oil Separator

GrimmSpeed
GrimmSpeed Subaru Red Lightweight Crank Pulley
Manley Performance
Manley 04+ Subaru WRX/STi (EJ257) 75mm DE-Stroker 99.75mm +.25mm Size Bore 9.8:1 Flat Top Piston Set

Clevite
Clevite Tri Armor Con Rod Bearing Set
FAQ
Frequently Asked Questions About the Subaru Impreza
What are the best aftermarket parts brands for the Subaru Impreza?
The top brands MOTORMIA owners trust for Subaru Impreza builds are PowerStop, EBC, Whiteline, Mishimoto, and Magnaflow. The catalog carries 5,779 parts that fit the Impreza. 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 Subaru Impreza to modify?
The most-modified Impreza trims are 2.5RS and Outback Sport. These trims typically came with performance-focused suspension, brakes, and engine options that give a higher starting point. That said, the Impreza's engine family (EJ25 (naturally aspirated), FB20, FB25) 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 Subaru Impreza?
For most Subaru Impreza builds, the recommended modification order is: intake → exhaust → suspension → ECU tune → swap (if going turbo). 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 Subaru Impreza builds at every power level.
How does the Subaru Impreza aftermarket compare to the Subaru WRX?
The Subaru Impreza is the base AWD-boxer platform that became the WRX, with strong N/A and budget tuning support. On MOTORMIA, 5,779 parts fit the Impreza across 4,000+ active member builds, with an average part MSRP of $623. The decision usually comes down to which platform you own — both have full bolt-on catalogs.
Will any Subaru Impreza part fit my year and trim?
Not always. The Subaru Impreza has had multiple generations and engine changes (e.g., EJ25 (naturally aspirated), FB20, FB25), 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 Impreza a part fits. Use the fitment selector at the top of any page to pre-filter to your build.
Does MOTORMIA offer returns on Subaru Impreza parts?
Yes. Most Subaru Impreza 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 Subaru Impreza with Mia
Personalized Subaru Impreza mod recommendations, verified fitment from real Impreza owners, and a garage that tracks every part on your build.
- Mod recommendations tuned to your Impreza year, trim, and submodel
- Verified fitment data from 4,000+ Subaru Impreza member builds
- Performance gain estimates based on real-world results
- Save your garage and track every part you've installed