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 air and fuel Parts

1225 parts available

Shop aftermarket parts for the Subaru Impreza. Verified fitment, free shipping, 30-day returns.

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30-Day Returns
Victor Reinz throttle body

Victor Reinz

MAHLE Original Saab 9-2X 06 Throttle Body Gasket

Perrin Performance black auto part

Perrin Performance

PERRIN 08-14 Subaru WRX / 04-13 Forester XT / 05-09 LGT/OBXT Turbo Inlet Hose - Black

T

Torque Solution

Torque Solution Turbo Inlet Hose Black: 02-07 Subaru WRX / 04-18 STI / 05-09 Legacy GT / 04-13 FTX

HKS auto part

HKS

HKS Standard Fuel Cut Defender

Injector Dynamics auto part

Injector Dynamics

Injector Dynamics ID1300 Subaru STi (04-06) 1300cc Injectors Top Feed Conversion Kit

Perrin Performance red auto part

Perrin Performance

PERRIN 08-14 Subaru WRX / 05-09 LGT & OBXT / 09-13 Forester XT Bypass/Blow Off Valve - Red

Perrin Performance silver intercooler

Perrin Performance

PERRIN 02-07 Subaru WRX/STi Front Mount Intercooler Core & Mounting Beam - Silver Core

Torque Solution auto part

Torque Solution

Torque Solution Subaru EJ -10AN Turbo Oil Return Line Kit

Perrin Performance black intercooler

Perrin Performance

PERRIN 08-14 Subaru WRX Front Mount Intercooler Boost Tubes + Hardware - Black Tubes

Grams Performance auto part

Grams Performance

Grams Performance 02-11 Subaru WRX / 07+ STI / 07-11 Legacy 750cc Fuel Injectors (Set of 4)

Moroso intercooler

Moroso

Moroso 08-14 Subaru STi (w/Top Mount Intercooler) Air/Oil Separator Catch Can - Billet Aluminum

Perrin Performance auto part

Perrin Performance

PERRIN 02-14 Subaru WRX / 04-21 STI / 05-09 LGT & OBXT (w/FMIC Only) Air Oil Separator - Neon Yel.

Victor Reinz intake system

Victor Reinz

MAHLE Original Subaru Forester 98 Intake Manifold Set

Torque Solution auto part

Torque Solution

Torque Solution Subaru EJ w/ Garrett GT/GTX -10AN Turbo Oil Return Line Kit

Perrin Performance red intercooler

Perrin Performance

PERRIN 02-07 Subaru WRX / 04-21 STI / 04-08 FXT Intercooler Coupler Kit - Red

Victor Reinz throttle body

Victor Reinz

MAHLE Original Subaru Impreza 05-02 Throttle Body Gasket

Victor Reinz throttle body

Victor Reinz

MAHLE Original Subaru Forester 98 Throttle Body Gasket

Perrin Performance red intake system

Perrin Performance

PERRIN 02-07 Subaru WRX/STi AFTA-MAF Intake Tube Air-Box to Inlet Hose - Red

B

BLOX Racing

BLOX Racing Intercooler Inlet Gaskets EJ20/EJ25 (Pair)

Grams Performance auto part

Grams Performance

Grams Performance 02-11 Subaru WRX / 07+ STI / 07-11 Legacy 1150cc Fuel Injectors (Set of 4)

HKS auto part

HKS

HKS I/C S-type AL GDB(F) EJ207

Perrin Performance intake system

Perrin Performance

PERRIN 08-14 Subaru WRX / 08-21 STI / 05-09 LGT/OBXT AFTA-MAF Intake Tube Air-Box to Inlet Hose - Bk

P

Perrin Performance

PERRIN 08-14 Subaru WRX Front Mount Intercooler Boost Tubes + Hardware - Red Tubes

Perrin Performance black auto part

Perrin Performance

PERRIN 02-07 Subaru WRX / 04-21 STI / 04-08 Forester XT Turbo Inlet Hose - Black

Torque Solution throttle body

Torque Solution

Torque Solution Thermal Throttle Body Gasket: Subaru WRX 2002-2005 2.0T

Perrin Performance auto part

Perrin Performance

PERRIN 08-14 Subaru WRX / 09-13 FXT / 05-09 LGT & OBXT Pro Electronic Boost Control Solenoid

Perrin Performance red auto part

Perrin Performance

PERRIN 08-14 Subaru WRX & STI / 08-11 Impreza / 05-09 Legacy Tow Hook Kit (Front) - Red

Torque Solution auto part

Torque Solution

Torque Solution 02-14 Subaru WRX / 07-20 STI 6AN Flex Fuel Add-On Kit

Perrin Performance black intercooler

Perrin Performance

PERRIN 02-07 Subaru WRX / 04-21 STI / 04-08 FXT Intercooler Coupler Kit - Black

P

Perrin Performance

PERRIN 02-07 Subaru WRX/STi Front Mount Intercooler Core & Mounting Beam - Black Core

Torque Solution auto part

Torque Solution

Torque Solution Billet Aluminum 1.25in. Bypass Plug: Universal & EVO/WRX/STi

Torque Solution black auto part

Torque Solution

Torque Solution Turbo Inlet Hose Black: 02-07 Subaru WRX/04-18 STI/05-09 Legacy GT/04-13 FTX - Blue

Torque Solution throttle body

Torque Solution

Torque Solution Thermal Throttle Body Gasket: Subaru 2.5L Drive by Wire

Placeholder image

Torque Solution

Torque Solution Braided Fuel Line Kit for -6 Aeromotive FPR: Subaru WRX 02-14 / Subaru STI 07-18

Perrin Performance auto part

Perrin Performance

PERRIN 18-14 Subaru WRX/STI / 08-11 Impreza / 2025 Forester / 05-09 Legacy License Plate Reloc. Kit

H

HKS

HKS I/C S-type AL GDB(E) EJ207

Injector Dynamics auto part

Injector Dynamics

Injector Dynamics 1700cc Injectors-48mm Length-Mach 11mm Top (WRX Spec)-Denso Low Cushion(Set of 4)

P

Perrin Performance

PERRIN 02-07 Subaru WRX/STi Air Oil Separator Kit - Neon Yellow

HKS auto part

HKS

HKS 08+ STi FMIC *Requires Smaller Battery 71007-AK001 & 70020-BF010*

BLOX Racing auto part

BLOX Racing

BLOX Racing 2002-2005 Subaru WRX Thermal Shield T/B Gasket

Perrin Performance black intercooler

Perrin Performance

PERRIN 08-14 Subaru STI Front Mount Intercooler Boost Tubes + Hardware - Black Tubes

Victor Reinz auto part

Victor Reinz

MAHLE Original Saab 9-2X 06 Turbocharger Mounting Set

Perrin Performance black auto part

Perrin Performance

PERRIN 02-07 Subaru WRX / 04-21 STI / 06-08 FXT Bypass/Blow Off Valve - Black

Moroso catch can

Moroso

Moroso 04-07 Subaru STi/06-07 WRX Air/Oil Separator Catch Can - Small Body - Billet Aluminum

Victor Reinz throttle body

Victor Reinz

MAHLE Original Saab 9-2X 06-05 Throttle Body Gasket

Perrin Performance black intercooler

Perrin Performance

PERRIN 08-14 Subaru WRX/STI Front Mount Intercooler Core + Mounting Beam - Black Core

Mishimoto black intercooler

Mishimoto

Mishimoto 08-14 Subaru WRX Top-Mount Intercooler Kit - Powder Coated Black & Black Hoses

Injen polished cold air intake

Injen

Injen 04-07 STi / 06-07 WRX 2.5L Polished Cold Air Intake

Go Fast Bits auto part

Go Fast Bits

Pulley Kit Lightweight Underdrive 300ZX

COBB auto part

COBB

Cobb TD05H-20G-8 Turbocharger for WRX STI

DeatschWerks fuel pump

DeatschWerks

DeatschWerks 06-11 Honda Civic/05-09 Legacy GT/08-12 WRX/STi Fuel Pump Set Up Kit

Mishimoto black intercooler

Mishimoto

Mishimoto 02-05 Subaru WRX Black Silicone Intercooler Hoses

Aeromotive auto part

Aeromotive

Aeromotive 04-06 2.5L Side Feed Injector Subaru STI Fuel Rail Kit

Go Fast Bits auto part

Go Fast Bits

GFB 02-10 WRX/STI 2 Piece Under-Drive Pulley Kit w/ Belts (Crank & Alternator)

Weapon R intake system

Weapon R

Weapon R 05-07 Subaru Impreza / Forester 2.2L / 2.5L Secret Weapon Intake

COBB intercooler

COBB

Cobb 08-14 Subaru WRX STI Front Mount Intercooler Cold Pipes

Mishimoto black cold air intake

Mishimoto

Mishimoto 08+ Subaru WRX/STi Performance Cold Air Intake Kit - Wrinkle Black

K&N Engineering carbon air filter

K&N Engineering

K&N Cone Filter 5in ID 6.5in base 4.5in top 5.625in height carbon fiber look

Nitrous Express auto part

Nitrous Express

Nitrous Express - ALL SPORT COMPACT EFI SINGLE NOZZLE SYSTEM (35-50-75 HP) WITH 5LB BOTTLE - 20923-05

COBB intercooler

COBB

Cobb 08-14 Subaru WRX STI Front Mount Intercooler Hot Pipes

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