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

The Subaru Impreza is the base car beneath the WRX, but enthusiasts have been modifying the naturally-aspirated 2.0 / 2.5 base Imprezas for decades. AWD architecture, boxer engine layout, and Subaru's flat-four soundtrack come standard.

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

5,779
Parts that fit
4,000+
MOTORMIA Builds
PowerStop
#1 brand by SKUs
$623
Average MSRP

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.

Free Shipping
30-Day Returns
J

JE Pistons

SUB EJ25 ULTRA SERIRES 9.5

Subaru auto part

Subaru

Subaru OEM STI Short Block Subaru STI 2018 Type RA / 2019

C

Clevite

ENGINE CYLINDER HEAD GASKET SET

MAIN BEARING SET

Clevite

MAIN BEARING SET

M

Mahle

*USE: MCIMS-2258HX PER Gaskets Short Block Set Dodge Trk. (5.7L) 2007

J

JE Pistons

BOD-SUB EJ22 STROKER INV DME -22CC

EN VAR TIME SOLENOID

NGK

EN VAR TIME SOLENOID

Carrillo hardware kit

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 )

S

Subaru

STI WRX timing belt

J

JE Pistons

SUBARU EJ257 WRX/STI 4V DISH -19CC

JE Pistons auto part

JE Pistons

SUBARU EJ257 WRX/STI 4V DISH -19CC

J

JE Pistons

SUBARU EJ20 R/DOME 6576M925

Subaru auto part

Subaru

Subaru BLOCK SET CYL

Subaru auto part

Subaru

Subaru OEM Forged Salt Bath Nitrated Crankshaft Subaru WRX 2006-2014 / STI 2004

M

Manley Performance

Manley Performance Valve-Custom TI .3415

J

JE Pistons

SUB EJ25 95-98 KIT

JE Pistons auto part

JE Pistons

SUB EJ25 95-98 KIT

JE Pistons auto part

JE Pistons

SUB WRX HD/STI KIT

TOYTA 3TC 1.8L W/ 63CC HEAD, 86MM B

JE Pistons

TOYTA 3TC 1.8L W/ 63CC HEAD, 86MM B

C

Clevite

PISTON WITH RINGS

C

Clevite

STARTER MOTOR 24V 4.5KW

G

Gates

Gates Premium Engine Water Pump

Fluidampr auto part

Fluidampr

OLDSMOBILE DAMPER RING

J

JE Pistons

SUB WRX HD/STI KIT

C

Clevite

CYL SLEEVE ASSEMBLY

JE Pistons auto part

JE Pistons

UX 92.00MM 1.0/1.2/2.8 DLC

JE Pistons auto part

JE Pistons

UX 93.00MM 1.0/1.2/2.8 DLC

C

Company23

Company23 SOHC Water Pump Kit - 06-11 Impreza 06-10 Forester (06 MT only) 06-12 Legacy (not 2.5GT) 06-12 Outback

J

JE Pistons

SUB WRX HD/STI KIT

H

HKS

HKS Camshaft EJ207 264 EX

B

Brian Crower

LEFT INTAKE

JE Pistons auto part

JE Pistons

SUB STI EJ257+10 KIT

Killer B Motorsport auto part

Killer B Motorsport

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

C

Clevite

OVERHAUL KIT

ACL auto part

ACL

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

JE Pistons auto part

JE Pistons

HD2 MITSUBISHI EVO 4-9

J

JE Pistons

SUBARU EJ257 WRX/STI 4V DISH -24CC

NTK VV0047 VVT SOLENOID

NGK

NTK VV0047 VVT SOLENOID

NTK VV0045 VVT SOLENOID

NGK

NTK VV0045 VVT SOLENOID

Subaru OEM Piston Ring Set Subaru STI 2008

Subaru

Subaru OEM Piston Ring Set Subaru STI 2008

J

JE Pistons

SUBARU EJ257 WRX/STI 4V DISH -15CC

Clevite Subaru EJ Series 1990-2005 Main Bearing Set

Clevite

Clevite Subaru EJ Series 1990-2005 Main Bearing Set

JE Pistons auto part

JE Pistons

SUB EJ25 ULTRA SERIRES8.5

J

JE Pistons

SUBARU EJ20 ULTRA SERIES 9.5:1

MITS TURBO DISH -10CC 1.378 X 86.0

JE Pistons

MITS TURBO DISH -10CC 1.378 X 86.0

C

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 auto part

JE Pistons

SUB EJ25 ULTRA SERIES 8.5:1

J

JE Pistons

SUBARU EJ20 STROKER ULTRA SERIES 8.

J

JE Pistons

SUBARU EJ20 ULTRA SERIES 8.5:1

C

Clevite

ENGINE CYLINDER HEAD SPACER SHIM

J

JE Pistons

SUB EJ25 ULTRA SERIRES8.5

J

JE Pistons

SUBARU EJ20 ULTRA SERIES 9.5:1

D

Denso

MANIFOLD ABSOLUTE PRESSURE SENSOR

JE Pistons auto part

JE Pistons

SUB EJ25 ULTRA SERIRES 9.5

Carrillo auto part

Carrillo

BC21-5706-IMCA

GrimmSpeed Subaru Black Lightweight Crank Pulley

GrimmSpeed

GrimmSpeed Subaru Black Lightweight Crank Pulley

G

GrimmSpeed

GrimmSpeed 08-10+ WRX / 05-09 LGT RED Air Oil Separator

GrimmSpeed Subaru Red Lightweight Crank Pulley

GrimmSpeed

GrimmSpeed Subaru Red Lightweight Crank Pulley

M

Manley Performance

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

Clevite auto part

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