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.

Free Shipping
30-Day Returns
G

Gates

Gates Light Duty Water Pumps 2014-13 Subaru Outback 4-Cyl. 2.5 L Water Pump

RADIATOR

Denso

RADIATOR

RADIATOR

Denso

RADIATOR

PERRIN 02-25 Subaru WRX / 04-21 STI / 13-26 BRZ/GR86/FRS/86 Coolant Overflow Tank - Hyper Pink

Perrin Performance

PERRIN 02-25 Subaru WRX / 04-21 STI / 13-26 BRZ/GR86/FRS/86 Coolant Overflow Tank - Hyper Pink

Gates auto part

Gates

Gates 04-13 Subaru Forester 4-Cyl. 2.5L By Pass Thermostat To Pipe-1 Straight Heater Hose (Standard)

Perrin Performance auto part

Perrin Performance

PERRIN 13-25 Subaru Crosstrek & Impreza / 18-25 Forester CVT Transmission Cooler Full Kit

H

HKS

HKS S Type O/C KIT GDB F EJ207 BLK

H

HKS

HKS S Type O/C KIT GDB C-E BLK

Gates auto part

Gates

Gates 1998 Subaru Impreza 4-Cyl. 2.5L Lower Molded Coolant Hose

Gates throttle body

Gates

Gates 12-13 Subaru Forester 4-Cyl. 2.5L Throttle Body Inlet - Upper Molded Heater Hose

Gates auto part

Gates

Gates 09-13 Subaru Forester 4-Cyl. 2.5L Heater Outlet Molded Heater Hose

CSF auto part

CSF

CSF 7042 - Radiator (Superseded 7095)

Gates auto part

Gates

Gates 04-08 Subaru Forester 4-Cyl. 2.5L Reservoir (Upper) Molded Heater Hose

Gates auto part

Gates

Gates 99-18 Subaru Forester 2.5L 4 Cyl Safety Release Radiator Cap - 16 psi

Gates auto part

Gates

Gates 03-08 Subaru Forester 4-Cyl. 2.5L Heater Outlet Molded Heater Hose

CSF auto part

CSF

CSF 7028 - Radiator (Superseded 7094)

Gates auto part

Gates

Gates 06-10 Forester/Outback / 06-11 Impreza / 06-09 Legacy Water Pump

Killer B Motorsport auto part

Killer B Motorsport

Killer B 02-07 Subaru WRX/STi Performance Radiator

Gates 93-01 Subaru Impreza / 90-94 Legacy Small ID Coolant Hose

Gates

Gates 93-01 Subaru Impreza / 90-94 Legacy Small ID Coolant Hose

H

HKS

HKS S type O/C GRB(A-)

K

Killer B Motorsport

Killer B 00-07 Subaru Impreza (GD) Low Mount Performance Radiator

Gates 84-85 Mazda RX-7 / 80-83 Nissan 280ZX / 93-01 Subaru Impreza Small ID Coolant Hose

Gates

Gates 84-85 Mazda RX-7 / 80-83 Nissan 280ZX / 93-01 Subaru Impreza Small ID Coolant Hose

Killer B Motorsport auto part

Killer B Motorsport

Killer B 08-14 Subaru WRX/STi Performance Radiator

Perrin Performance black auto part

Perrin Performance

Perrin Coolant Overflow Tank - Black

G

Greddy

GReddy 02-07 WRX & STi Oil Cooler Kit Manual Trans ONLY

C

COBB

Cobb 08-14 Subaru WRX/STI Coolant Overflow Tank

CSF auto part

CSF

CSF 02-07 Subaru Impreza 2.5L OEM Plastic Radiator

CSF auto part

CSF

CSF 02-05 Subaru Impreza 2.0L OEM Plastic Radiator

Cusco blue auto part

Cusco

Cusco Radiator Cooling Plate GDB-F 06 STi *Blue*

Mishimoto auto part

Mishimoto

Mishimoto Screw On Oil Funnel Subaru Kit

Mishimoto auto part

Mishimoto

Mishimoto High-Pressure 1.3 Bar Radiator Cap - Small - One-Way

Placeholder image

CSF

CSF 18-23 Subaru Crosstrek / 17-22 Impreza High-Performance All-Radiator

Mishimoto auto part

Mishimoto

Mishimoto Subaru Impreza WRX/STI Replacement Radiator 2004-2007

Mishimoto auto part

Mishimoto

Mishimoto Subaru Forester Replacement Radiator 1998-2002

CSF black auto part

CSF

CSF 08-21 Subaru WRX/STI 2-Row 42mm Race-Spec All Aluminum Radiator - Black

Mishimoto auto part

Mishimoto

Mishimoto Subaru Impreza Replacement Radiator 2002-2007

Gates auto part

Gates

Gates 02-07 Subaru WRX/STI Upper Radiator Hose

Gates auto part

Gates

Gates 08-12 Subaru Forester/Impreza Water Pump

Gates auto part

Gates

Gates 00-05 Subaru Outback / 90-05 Legacy / 93-05 Impreza Water Pump

Gates auto part

Gates

Gates 98-13 Toyota Corolla 1.8L Thermostat Seal

Gates auto part

Gates

Gates 50ft Safety Stripe Heater Hose -40 Deg to 257 Deg 60 PSI

Gates auto part

Gates

Gates 5/16in x 50 ft SS Heater Hose

Gates auto part

Gates

Gates 90-93 Acura Integra / 90-97 Mazda MX-5 Miata / 03-06 Nissan 350Z Radiator Cap - 13 psi

Placeholder image

Gates

Gates Ford/Chevy/Honda/Hyundai/Kia/Lexus/Mazda/Mitsubishi/Nissan/Subaru/Suzuki/Toyota Radiator Cap

Gates auto part

Gates

Gates Acura / Chevrolet / Ford / GMC / Honda / Infiniti / Mazda / Mitsubishi / Nissan Radiator Cap

Gates auto part

Gates

Gates Subaru 04-08 Impreza / 05-08 Legacy/Outback 4 cyl 2.5L EJ25 Water Pump

GrimmSpeed red auto part

GrimmSpeed

GrimmSpeed 02-07 Subaru WRX / 04-07 Subaru STi / 02-05 Subaru Impreza Radiator Hose Kit - Red

GrimmSpeed black auto part

GrimmSpeed

GrimmSpeed 08-14 Subaru WRX / 08-17 Subaru STi / 09-13 Subaru Forester XT Radiator Hose Kit - Black

Torque Solution blue auto part

Torque Solution

Torque Solution 08-14 Subaru WRX / 08-18 STI / 09-13 Forester XT Silicone Radiator Hose Kit - Blue

Torque Solution red auto part

Torque Solution

Torque Solution 08-14 Subaru WRX / 08-18 STI / 09-13 Forester XT Silicone Radiator Hose Kit - Red

GrimmSpeed black auto part

GrimmSpeed

GrimmSpeed 02-07 Subaru WRX / 04-07 Subaru STi / 02-05 Subaru Impreza Radiator Hose Kit - Black

Torque Solution black auto part

Torque Solution

Torque Solution 02-07 Subaru WRX / 04-07 STI Silicone Radiator Hose Kit - Black

Torque Solution black auto part

Torque Solution

Torque Solution 08-14 Subaru WRX / 08-18 STI / 09-13 Forester XT Silicone Radiator Hose Kit - Black

Victor Reinz auto part

Victor Reinz

MAHLE Original Saab 9-2X 06-05 Water Pump Seal

Torque Solution blue auto part

Torque Solution

Torque Solution 02-07 Subaru WRX / 04-07 STI Silicone Radiator Hose Kit - Blue

Moroso auto part

Moroso

Moroso 08-19 Subaru WRX/STi Coolant Expansion Tank

GrimmSpeed red auto part

GrimmSpeed

GrimmSpeed 08-14 Subaru WRX / 08-17 Subaru STi / 09-13 Subaru Forester XT Radiator Hose Kit - Red

Torque Solution red auto part

Torque Solution

Torque Solution 02-07 Subaru WRX / 04-07 STI Silicone Radiator Hose Kit - Red

Mishimoto auto part

Mishimoto

Mishimoto 08-14 Subaru WRX / 08+ STI Silicone Radiator Hose Kit - Neon Yellow

Mishimoto blue auto part

Mishimoto

Mishimoto 02-07 Subaru Impreza WRX Aluminum Radiator Stay - Anodized Blue

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