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.

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Brian Crower

Brian Crower 08+ STi Camshafts - Stage 3 - Set of 4

HKS auto part

HKS

HKS Forged Piston Full Kit EJ20 2.2L

Moroso catch can

Moroso

Moroso 08-14 Subaru WRX Air/Oil Separator Catch Can - Billet Aluminum

Perrin Performance red auto part

Perrin Performance

PERRIN 02-14 Subaru WRX / 04-21 STI / 08-11 Impreza Pulley Cover - Red

Perrin Performance black auto part

Perrin Performance

PERRIN 93-14 Subaru Impreza (Incl. 02-14 WRX) / 04-21 STI Lightened Crank Pulley - Black

Brian Crower Subaru EJ205/EJ257 Single Groove Valve Stem Keepers/Locks (fits BC2160)

Brian Crower

Brian Crower Subaru EJ205/EJ257 Single Groove Valve Stem Keepers/Locks (fits BC2160)

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Brian Crower

Brian Crower EJ20 Custom CR & Bore CP Pistons for 79 mm Stoker Kit incl. Pins Rings & Locks **SPECIA

GSC Power Division auto part

GSC Power Division

GSC P-D Subaru EJ20 JDM / Euro Spec STi S3 Cams 282/282 (Not compatible w/USA Spec Engines) Billet

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Brian Crower

Brian Crower Subaru EJ205 - WRX Stroker Kit - 75mm Stroke Billet Crank Sportsman Rods Custom Pistons

B

Brian Crower

Brian Crower 08+ STi Camshafts - Stage 2 - Set of 4

Torque Solution auto part

Torque Solution

Torque Solution Short Oil Fill Tube: Subaru EJ20/EJ25 Engines

Brian Crower Subaru EJ205-WRX/EJ257-STi / Toyota 3SGTE Steel Retainers - Set of 16

Brian Crower

Brian Crower Subaru EJ205-WRX/EJ257-STi / Toyota 3SGTE Steel Retainers - Set of 16

GSC Power Division springs

GSC Power Division

GSC P-D Subaru EJ257 Beehive Valve Spring & Ti Retainer Kit (Use w/OE Spring Seats)

Victor Reinz hardware kit

Victor Reinz

MAHLE Original Saab 9-2X 06-05 Cylinder Head Bolts

Torque Solution silver auto part

Torque Solution

Torque Solution Billet TPMS Valve Stem Kit (Silver) 2008+ Subaru Legacy Impreza WRX / STi

HKS auto part

HKS

HKS PISTON RING SET F1

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Brian Crower

Brian Crower Subaru EJ207 - JDM STi Camshafts - Stage 3 - Set of 4

GSC Power Division auto part

GSC Power Division

GSC P-D Subaru EJ20 JDM / Euro Spec STi S2 Cams 272/272 (Not compatible w/USA Spec Engines) Billet

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Brian Crower

Brian Crower Subaru EJ205 - 02-05 WRX Camshafts - Stage 3 - Set of 4

Brian Crower auto part

Brian Crower

Brian Crower Crankshaft -Subaru EJ257-STi 83mm Stroke 4340 Billet

Moroso auto part

Moroso

Moroso Subaru EJ25 Oil Pump Pick-Up

Carrillo hardware kit

Carrillo

Carrillo Subaru EJ18/EJ20/EJ257 (WRX Sti) Pro-H 3/8 WMC Bolt Connecting Rods

GSC Power Division polished exhaust

GSC Power Division

GSC P-D Subaru Subaru EJ205/EJ207/EJ257 Chrome Polished Exhaust Valve - 33mm Head (+1mm) - Single

GSC Power Division polished exhaust

GSC Power Division

GSC P-D Subaru EJ20/EJ257 Turbo Chrome Polished Super Alloy Exhaust Valve - 33mm Head (+1mm) -Single

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Brian Crower

Brian Crower Subaru EJ205 - WRX Stroker Kit - 79mm Stroke Billet Crank BC Sportsman Rods w/ARP2000

Torque Solution auto part

Torque Solution

Torque Solution Cylinder 4 Coolant Mod - Subaru EJ Engines

Torque Solution auto part

Torque Solution

Torque Solution Lightweight Crank Pulley: Subaru Impreza/WRX/STi/Legacy/Forester

Moroso auto part

Moroso

Moroso Subaru EJ20/EJ22/EJ25 Deep Wet Sump 6qt 6-15/16in Aluminum Oil Pan

Torque Solution auto part

Torque Solution

Torque Solution Lightweight Crank Pulley & Install Kit: Subaru Impreza 08-11/ WRX & STi 2008+

GSC Power Division polished exhaust

GSC Power Division

GSC P-D EJ series EJ205/EJ207/EJ257 Chrome Polished Super Alloy Exhaust Valve-32mm Head(STD)

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Brian Crower

Brian Crower EJ257 Custom CR & Bore CP Pistons for STI Stoker Kit incl. Pins Rings & Locks

Victor Reinz hardware kit

Victor Reinz

MAHLE Original Saab 9-2X 06 Cylinder Head Bolts

Brian Crower auto part

Brian Crower

Brian Crower Connecting Rods - Subaru EJ205/EJ257 - 5.141 - I-Beam w/ARP2000 Fasteners

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Brian Crower

Brian Crower Subaru EJ205-WRX/EJ257-STi Single Spring & Titanium Retainer Kit

Moroso auto part

Moroso

Moroso Subaru EJ20/EJ22/EJ25 Road Race Baffled Wet Sump 5qt .125in Thick Aluminum Oil Pan

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Brian Crower

Brian Crower Subaru EJ257 - 04-07 STi 06-07 WRX Camshafts - Stage 3 - Set of 4

Carrillo hardware kit

Carrillo

Carrillo Subaru EJ18/EJ20/EJ22/EJ257 (WRX Sti) Pro-H 3/8 WMC Bolt Heavy Duty Connecting Rods

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Brian Crower

Brian Crower Subaru EJ205/EJ207/EJ257 Series Dual Spring/Titanium Retainer/Spring Seal Kit

GSC Power Division polished intake system

GSC Power Division

GSC P-D Subaru EJ205/EJ207/EJ257 Chrome Polished Intake Valve - 37mm Head (+1mm) - Single

Carrillo hardware kit

Carrillo

Carrillo Subaru EJ18/EJ20/EJ22/EJ257 (WRX Sti) Pro-H 3/8 CARR Bolt Heavy Duty Connecting Rods

Carrillo hardware kit

Carrillo

Carrillo Subaru EJ18/EJ20/EJ257 (WRX Sti) Pro-H 3/8 CARR Bolt Connecting Rod (SINGLE ROD)

Brian Crower Subaru EJ205-WRX/EJ257-STi Single Valve Springs

Brian Crower

Brian Crower Subaru EJ205-WRX/EJ257-STi Single Valve Springs

JE Pistons auto part

JE Pistons

JE Pistons SUB EJ25 SOHC 8.5:1 KIT Set of 4 Pistons

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Mishimoto

Mishimoto 08-14 Subaru STI Baffled Oil Catch Can Kit - Black

King Engine Bearings auto part

King Engine Bearings

King Engine Bearings Subaru EJ20/EJ22/EJ25 Housing Bore + .002 Main Bearing Set - Size +.026mm

Manley Performance auto part

Manley Performance

Manley 98+ Subaru WRX (EJ205) 75mm STD Stroke 92.5mm +0.5mm Bore 8.5:1 Dish Piston Set with Rings

Wiseco auto part

Wiseco

Wiseco Subaru EJ25 SOHC 4v Dish -18cc 99.5 Piston Shelf Stock Kit

Wiseco auto part

Wiseco

Wiseco Subaru WRX EJ20 STRKR 1.181CH9250XX Piston Shelf Stock

JE Pistons auto part

JE Pistons

JE Pistons SUB 8.8:1 BILLET KIT Set of 4 Pistons

JE Pistons auto part

JE Pistons

JE Pistons Ultra Series Subaru EJ257 99.75mm Bore 9.5:1 CR Set of 4 Pistons

Manley Performance auto part

Manley Performance

Manley 04+ Subaru WRX STi (EJ257) STD Stroke 99.5mm STD Bore 8.5:1 Dish Piston Set with Rings

JE Pistons auto part

JE Pistons

JE Pistons Subaru EJ25 Ultra Series 99.5mm Bore Dome -7cc 9.5:1 CR - Piston Set

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King Engine Bearings

King Subaru EJ15/EJ16/EJ18/EJ20/EJ22/EJ25 (Size 0.75mm) Silicone Bi-Metal Alum Rod Bearing Set

JE Pistons auto part

JE Pistons

JE Pistons SUB WRX EJ20 92.5mm Bore CR 8.5 KIT Set of 4 Pistons

Manley Performance exhaust

Manley Performance

Manley Subaru WRX EJ205/STi EJ257 33mm Race Master Exhaust Valve (Single)

Wiseco auto part

Wiseco

Wiseco Subaru EJ25 DOHC 4v InvDme -23cc 99.75 Piston Shelf Stock Kit

Manley Performance auto part

Manley Performance

Manley 04+ Subaru WRX STi (EJ257) STD Stroke 99.75mm +.25mm Bore 9.8:1 Dish Piston - Single

CP Pistons auto part

CP Pistons

CP Piston & Ring Set for Subaru EJ20 WRX - Bore (92mm) - Size (Standard) - Compression Ratio (8.5)

JE Pistons auto part

JE Pistons

JE Pistons SUB STI EJ257 KIT Set of 4 Pistons

JE Pistons auto part

JE Pistons

JE Pistons SUB EJ257 83mm STR 99.75mm Bore CR 8.5 KIT Set of 4 Pistons

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