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:heating and cooling Parts

316 parts available

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

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30-Day Returns
E

Extreme Turbo Systems

ETS Subaru WRX 22 Titanium Intake

HPS Performance blue auto part

HPS Performance

HPS Performance Blue Reinforced Silicone Radiator Heater and Ancillary Hose Kit Coolant for Subaru 06-07 Impreza WRX 2.5L Turbo

H

HPS Performance

HPS Performance Black Reinforced Silicone Radiator Heater and Ancillary Hose Kit Coolant for Subaru 2005 Impreza WRX 2.0L Turbo

HPS performance 2005 Subaru Impreza WRX 2.0L Turbo Radiator + Heater Hose

HPS Performance

HPS performance 2005 Subaru Impreza WRX 2.0L Turbo Radiator + Heater Hose

Silicone Heater hoses

HPS Performance

Silicone Heater hoses

Radiator Hose Kit

HPS Performance

Radiator Hose Kit

HPS Performance blue auto part

HPS Performance

HPS Performance Blue Reinforced Silicone Radiator Hose Kit Coolant for Dodge 03-10 Ram 2500 3500 Pickup 5.9L / 6.7L Diesel Cummins

Radiator Hose Kit

HPS Performance

Radiator Hose Kit

RADIATOR

Denso

RADIATOR

HPS Performance black auto part

HPS Performance

HPS Performance Black Reinforced Silicone Radiator Heater and Ancillary Hose Kit Coolant for Subaru 06-07 Impreza WRX 2.5L Turbo

GrimmSpeed red auto part

GrimmSpeed

GrimmSpeed Radiator Shroud w Tool Tray Red Subaru WRX STi 2002-2007

H

HPS Performance

Heater Hose Kit

B

Boomba Racing

Boomba Racing 2022 WRX Stage 2 Catch Can Kit-NATURAL

HPS Performance Blue Reinforced Silicone Radiator + Heater Hose Kit for Subaru 2004-2005 Impreza 2.5L Non Turbo Left Hand Drive

HPS Performance

HPS Performance Blue Reinforced Silicone Radiator + Heater Hose Kit for Subaru 2004-2005 Impreza 2.5L Non Turbo Left Hand Drive

HPS Performance Black Reinforced Silicone Radiator + Heater Hose Kit for Subaru 2004-2005 Impreza 2.5L Non Turbo Left Hand Drive

HPS Performance

HPS Performance Black Reinforced Silicone Radiator + Heater Hose Kit for Subaru 2004-2005 Impreza 2.5L Non Turbo Left Hand Drive

RADIATOR

Denso

RADIATOR

RADIATOR

Denso

RADIATOR

K

Koyo

Koyo OEM Replacement 11-14 FD F-150 3.7L V6 STD AT

Gates OE Exact Engine Coolant Thermostat

Gates

Gates OE Exact Engine Coolant Thermostat

Koyo OEM Replacement 93-97 SB IMPREZA 1.8L H4 AT Supersedes A2218

Koyo

Koyo OEM Replacement 93-97 SB IMPREZA 1.8L H4 AT Supersedes A2218

H

HPS Performance

HPS Performance Blue Reinforced Silicone Radiator Heater and Ancillary Hose Kit Coolant for Subaru 2005 Impreza WRX 2.0L Turbo

H

HPS Performance

HPS Performance Blue Reinforced Silicone Radiator Heater and Ancillary Hose Kit Coolant for Subaru 02-03 Impreza WRX 2.0L Turbo

HPS Performance Blue Reinforced Silicone Radiator + Heater Hose Kit for Subaru 2006-2007 Impreza 2.5L Non Turbo Left Hand Drive

HPS Performance

HPS Performance Blue Reinforced Silicone Radiator + Heater Hose Kit for Subaru 2006-2007 Impreza 2.5L Non Turbo Left Hand Drive

HPS Performance Black Reinforced Silicone Radiator + Heater Hose Kit for Subaru 2006-2007 Impreza 2.5L Non Turbo Left Hand Drive

HPS Performance

HPS Performance Black Reinforced Silicone Radiator + Heater Hose Kit for Subaru 2006-2007 Impreza 2.5L Non Turbo Left Hand Drive

Koyo OEM Replacement 99-02 SB FORESTER 2.5L H4 AT

Koyo

Koyo OEM Replacement 99-02 SB FORESTER 2.5L H4 AT

Gates OE Type Engine Coolant Thermostat

Gates

Gates OE Type Engine Coolant Thermostat

CSF auto part

CSF

CSF Toyota A90/A91 Supra/ BMW G-Series B58 Charge-Air Cooler Manifold - Alpine White

RADIATOR

Denso

RADIATOR

G

Gates

Gates Coolant Hose - Small I.D. 2012 Subaru Impreza 4-Cyl. 2.0 L Heater Outlet

HPS Performance red auto part

HPS Performance

HPS Performance Red Reinforced Silicone Radiator Heater and Ancillary Hose Kit Coolant for Subaru 06-07 Impreza WRX 2.5L Turbo

HPS Performance auto part

HPS Performance

HPS performance 2004 Subaru Impreza WRX 2.0L Turbo Radiator + Heater Hose

HPS Performance Blue Reinforced Silicone Radiator + Heater Hose Kit for Subaru 2003 Impreza 2.5L Non Turbo Left Hand Drive

HPS Performance

HPS Performance Blue Reinforced Silicone Radiator + Heater Hose Kit for Subaru 2003 Impreza 2.5L Non Turbo Left Hand Drive

HPS Performance Blue Reinforced Silicone Radiator Hose Kit Coolant for Toyota 86-92 Supra MK3 Turbo NA 7MGE / 7MGTE

HPS Performance

HPS Performance Blue Reinforced Silicone Radiator Hose Kit Coolant for Toyota 86-92 Supra MK3 Turbo NA 7MGE / 7MGTE

C

CSF

CSF Gen 2 B58 Race X Charge-Air-Cooler Manifold - Stoplight Red

Koyo OEM Replacement 08-13 SB IMPREZA WRX 2.5L H4 TBO MT

Koyo

Koyo OEM Replacement 08-13 SB IMPREZA WRX 2.5L H4 TBO MT

HPS Performance Red Reinforced Silicone Radiator + Heater Hose Kit for Subaru 2006-2007 Impreza 2.5L Non Turbo Left Hand Drive

HPS Performance

HPS Performance Red Reinforced Silicone Radiator + Heater Hose Kit for Subaru 2006-2007 Impreza 2.5L Non Turbo Left Hand Drive

HPS Performance Red Reinforced Silicone Radiator + Heater Hose Kit for Subaru 2003 Impreza 2.5L Non Turbo Left Hand Drive

HPS Performance

HPS Performance Red Reinforced Silicone Radiator + Heater Hose Kit for Subaru 2003 Impreza 2.5L Non Turbo Left Hand Drive

RADIATOR

Denso

RADIATOR

HPS Performance Red Reinforced Silicone Radiator Hose Kit Coolant for Mitsubishi Lancer EVO 10

HPS Performance

HPS Performance Red Reinforced Silicone Radiator Hose Kit Coolant for Mitsubishi Lancer EVO 10

A/C CONDENSER

Denso

A/C CONDENSER

Radiator Hose Kit

HPS Performance

Radiator Hose Kit

D

Denso

RADIATOR

Silicone Heater hoses

HPS Performance

Silicone Heater hoses

CSF black auto part

CSF

CSF 2025+ BMW G90 M5 / G99 M5 Touring Charge Air Cooler - Heat Dispersion Thermal Black

Heater Hose Kit

HPS Performance

Heater Hose Kit

G

Gates

Gates Electric Engine Water Pump

HPS Performance red auto part

HPS Performance

HPS Performance Red Reinforced Silicone Radiator Heater and Ancillary Hose Kit Coolant for Subaru 2005 Impreza WRX 2.0L Turbo

HPS Performance Red Reinforced Silicone Radiator + Heater Hose Kit for Subaru 2004-2005 Impreza 2.5L Non Turbo Left Hand Drive

HPS Performance

HPS Performance Red Reinforced Silicone Radiator + Heater Hose Kit for Subaru 2004-2005 Impreza 2.5L Non Turbo Left Hand Drive

HPS Performance Black Reinforced Silicone Radiator + Heater Hose Kit for Subaru 2003 Impreza 2.5L Non Turbo Left Hand Drive

HPS Performance

HPS Performance Black Reinforced Silicone Radiator + Heater Hose Kit for Subaru 2003 Impreza 2.5L Non Turbo Left Hand Drive

HPS Performance Red Reinforced Silicone Radiator + Heater Hose Kit for Subaru 2002 Impreza 2.5L Non Turbo Left Hand Drive

HPS Performance

HPS Performance Red Reinforced Silicone Radiator + Heater Hose Kit for Subaru 2002 Impreza 2.5L Non Turbo Left Hand Drive

HPS Performance Black Reinforced Silicone Radiator + Heater Hose Kit for Subaru 2002 Impreza 2.5L Non Turbo Left Hand Drive

HPS Performance

HPS Performance Black Reinforced Silicone Radiator + Heater Hose Kit for Subaru 2002 Impreza 2.5L Non Turbo Left Hand Drive

Silicone Radiator hoses

HPS Performance

Silicone Radiator hoses

HPS Performance Blue Reinforced Silicone Radiator Hose Kit Coolant for Toyota 14-18 Corolla 1.8L

HPS Performance

HPS Performance Blue Reinforced Silicone Radiator Hose Kit Coolant for Toyota 14-18 Corolla 1.8L

COBB auto part

COBB

Cobb Tuning CSF 2-Row Subaru Aluminum Radiator 2008-2021 WRX 2008-2021 STI

C

COBB

Cobb Tuning CSF 2-Row Aluminum Radiator for Subaru WRX STi 2002-2007

PASSPORT RADIATOR

CSF

PASSPORT RADIATOR

Killer B Motorsport auto part

Killer B Motorsport

Killer B Motorsport Dual Washer/Coolant Reservoir Subaru WRX/STi 2002-2005

CSF auto part

CSF

SCION XB AC CONDENSER

HPS Performance catch can

HPS Performance

Oil Catch Can

Greddy red auto part

Greddy

Greddy ALUMINUM RADIATOR GDB

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