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.

Free Shipping
30-Day Returns
NGK auto part

NGK

MANIFOLD ABSOLUTE PRESSURE SENSOR

Radiator Heater Hose

HPS Performance

Radiator Heater Hose

OXYGEN SENSOR

Bosch

OXYGEN SENSOR

Perrin Performance black intercooler

Perrin Performance

PERRIN 02-07 Subaru WRX/STI Front Mount Intercooler Boost Tube Kit - Black

HKS auto part

HKS

HKS GT II 7460 STK GRF/GVF

W

Walbro

Fuelab 494 High Output In-Tank Electric Fuel Pump - 340 LPH In In-Line From Out

B

Bosch

OXYGEN SENSOR

S

Subaru

Subaru OEM Front Oxygen Sensor Subaru STI 2008-2014

O2 SENSOR

Denso

O2 SENSOR

Denso auto part

Denso

O2 OXYGEN SENSOR

Denso auto part

Denso

O2 SENSOR

OXYGEN SENSOR

Denso

OXYGEN SENSOR

Bosch auto part

Bosch

OXYGEN SENSOR

NTK MASS AIR FLOW SENSOR

NGK

NTK MASS AIR FLOW SENSOR

FUEL PUMP AND STRAINER SET

Denso

FUEL PUMP AND STRAINER SET

N

NGK

MANIFOLD ABSOLUTE PRESSURE SENSOR

W

Walbro

PUMP & KIT ASSY

NTK MASS AIR FLOW SENSOR

NGK

NTK MASS AIR FLOW SENSOR

H

HPS Performance

HPS Performance Performance Cold Air Intake Kit 08-14 Subaru WRX 2.5L Turbo Converts to Shortram Polish

H

HPS Performance

Performance Air Intake

GrimmSpeed auto part

GrimmSpeed

Grimmspeed Hood Scoop Splitter Subaru Forester XT 2004-2008

HPS Performance cold air intake

HPS Performance

Performance Air Intake

Boomba Racing red auto part

Boomba Racing

Boomba Racing Blow Recirculating Bypass Valve Red Subaru STI

HPS Performance Blue Reinforced Silicone Heater Hose Kit Coolant for Toyota 98-02 Land Cruiser 4.7L V8

HPS Performance

HPS Performance Blue Reinforced Silicone Heater Hose Kit Coolant for Toyota 98-02 Land Cruiser 4.7L V8

O2 OXYGEN SENSOR

Denso

O2 OXYGEN SENSOR

COBB silver intercooler

COBB

Cobb Tuning Subaru Front Mount Intercooler Kit (Silver) STI 2015-2021

Bosch auto part

Bosch

HONDA/ACURA CRANK HOLDING TOOL

MANIFOLD ABSOLUTE PRESSURE SENSOR

NGK

MANIFOLD ABSOLUTE PRESSURE SENSOR

B

Bosch

OXYGEN SENSOR

B

Bosch

OXYGEN SENSOR

Hella auto part

Hella

AIR MASS SENSOR

Denso auto part

Denso

MANIFOLD ABSOLUTE PRESSURE SENSOR

G

GrimmSpeed

GrimmSpeed Hood Scoop Splitter Subaru WRX 2002-2003

Bosch auto part

Bosch

MANUAL SLEEVE PULLER SET

HPS Performance blue auto part

HPS Performance

HPS Performance Blue Reinforced Silicone Radiator and Heater Hose Kit Coolant for Ford 86-93 Mustang GT / Cobra

OXYGEN SENSOR

Bosch

OXYGEN SENSOR

NTK MG0035 MAF SENSOR

NGK

NTK MG0035 MAF SENSOR

Cobb Tuning Subaru High Flow Fuel Pump STI 2004-2007 WRX 2002-2007

COBB

Cobb Tuning Subaru High Flow Fuel Pump STI 2004-2007 WRX 2002-2007

Bosch auto part

Bosch

OXYGEN SENSOR

G

Greddy

Greddy BLOW OFF VALVE KIT TYPE-FV GDB

HPS Performance cold air intake

HPS Performance

Performance Air Intake

H

HPS Performance

Performance Air Intake

O2 OXYGEN SENSOR

Denso

O2 OXYGEN SENSOR

N

NGK

NTK MA0194 PRESSURE SENSOR

K&N Engineering red intake system

K&N Engineering

K&N 02-07 WRX/STi Wrinkle Red Typhoon Short Ram Intake

K&N Engineering silver intake system

K&N Engineering

K&N 02-07 WRX/STi Silver Typhoon Short Ram Intake

K&N Engineering air filter

K&N Engineering

K&N 05-08 LGT / 08-11 WRX / STi Drop In Air Filter

GrimmSpeed red auto part

GrimmSpeed

GrimmSpeed 02-07 WRX / 04-10+ STi RED Air Oil Separator

Injen polished intake system

Injen

Injen 02-07 WRX/STi Polished Short Ram Intake

Injen red cold air intake

Injen

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

Injen red cold air intake

Injen

Injen 08-13 Subaru WRX/STi 2.5L (t) Wrinkle Red Cold Air Intake

K&N Engineering intake system

K&N Engineering

K&N 17-18 Subaru Impreza 2.0L H4 F/I Typhoon Short Ram Intake

Injen black cold air intake

Injen

Injen 00-01 Subaru Impreza RS 2.5L Black Cold Air Intake **SPECIAL ORDER**

Injen polished cold air intake

Injen

Injen 05-07 Subaru Impreza RS 2.5L-4cyl Polished Cold Air Intake

Turbosmart auto part

Turbosmart

Turbosmart BOV Kompact Plumb Back - Subaru

Forced Performance auto part

Forced Performance

Forced Performance Subaru STi Green Turbo 8cm Blk Hsg Ext WG w/Oil Line/Porting/Coat(Drop Ship Only)

Injector Dynamics blue auto part

Injector Dynamics

Injector Dynamics ID1050X Injectors - 60mm Length - 11mm Blue Top - 14mm Lower O-Ring (Set of 2)

Torque Solution carbon auto part

Torque Solution

Torque Solution 02-07 Subaru WRX/04-21 STI HD Hard Turbo Inlet - Carbon Fiber - OEM / 2.4in Inlet

Torque Solution carbon auto part

Torque Solution

Torque Solution 02-07 Subaru WRX/04-21 STI HD Hard Turbo Inlet - Carbon Fiber - OEM / 3.3in Inlet

Torque Solution carbon auto part

Torque Solution

Torque Solution 02-07 Subaru WRX/04-21 STI HD Hard Turbo Inlet Carbon Fiber - OEM / 3in Inlet

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