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
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
CATEGORIES
Top product categories for the Subaru Impreza
BRANDS
Top brands for Subaru Impreza builds
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.
Mishimoto
Mishimoto 08-14 Subaru WRX Baffled Oil Catch Can Kit - Black
JE Pistons
JE Pistons SUB WRX EJ205 79mm STR 92mm Bore CR 9.5 KIT Set of 4 Pistons
Go Fast Bits
GFB 02-10+ WRX/STI Crank Pulley (Not Under-Drive)
JE Pistons
JE Pistons SUB EJ25 SOHC 8.5:1 KIT Set of 4 Pistons
King Engine Bearings
King Subaru EJ20/EJ22/EJ25 (Suites 52mm Journal Size) Tri-Metal Perf Rod Bearing Set - Size STD
Manley Performance
Manley 04+ Subaru WRX/STi (EJ257) 75mm DE-Stroker 99.75mm +.25mm Size Bore 8.5:1 Piston Set (ED)
Manley Performance
Manley Sport Compact 99.5mm Bore 1.2mm x 1.2mm x 2.0mm Standard Ring Set
CP Pistons
CP Piston & Ring Set for Subaru EJ257 WRX STI- Bore (99.75mm)-Size (+0.25mm)- CR (10.0) - Set of 4
Go Fast Bits
GFB 04-10 WRX/STI 3 Piece Under-Drive Pulley Kit w/ Belts (Crank Alternator & Power Steering)
Wiseco
Wiseco Subaru EJ25 DOHC 4v InvDme -23cc 99.5 Piston Shelf Stock
Fluidampr
Fluidampr Subaru EJ Series Steel Internally Balanced Damper
King Engine Bearings
King Engine Bearings Subaru FB20 Connecting Rod Bearing Set
JE Pistons
JE Pistons SUB WRX EJ205 93mm Bore CR 9.5 KIT Set of 4 Pistons
JE Pistons
JE Pistons SUB EJ25 DOHC 11.5:1 KIT Set of 4 Pistons
JE Pistons
JE Pistons SUB EJ25 DOHC 11.5:1 KIT Set of 4 Pistons
Mahle
Mahle MS Piston Set Subaru EJ20/207 92mm Bore 75mm Stroke 130.4mm Rod 23mm Pin -12cc 8.5 CR Set of 4
JE Pistons
JE Pistons SUB EJ25 SOHC 8.5:1 KIT Set of 4 Pistons
King Engine Bearings
King Engine Bearings Subaru FD20 (Size +.25mm) Connecting Rod Bearing Set
CP Pistons
CP Piston & Ring Set for Subaru EJ20 WRX - Bore (93mm) - Size (+1.0mm) - Compression Ratio (8.5)
Wiseco
Wiseco Subaru EJ25 DOHC 4v InvDme -23cc 99.5 Piston Shelf Stock Kit
Manley Performance
Manley 00-03 Subaru WRX (EJ20) / 04 STi Exhaust 33mm Stainless Extreme Duty Valves
King Engine Bearings
King Subaru EJ20/EJ22/EJ25 (Including Turbo) (Size 0.5) Performance Rod Bearing - Set of 4
King Engine Bearings
King Engine Bearings Subaru EJ20/EJ22/EJ25 Performance Tri Metal Bearing Set - Size STDX
Manley Performance
Manley 04+ Subaru WRX STi (EJ257) STD Stroke 99.5mm STD Bore 9.8:1 Dish Piston Set with Rings
Wiseco
Wiseco Subaru EJ20 R/DOME 6576M925 Piston Shelf Stock Kit
Clevite
Clevite Subaru EJ Series 1990-2005 Main Bearing Set
Cometic Gasket
Cometic Subaru EJ25 Motor 100mm .120 inch MLS Head Gasket DOHC 16V
JE Pistons
JE Pistons SUB STI EJ257 Block w/ EJ20 Head 100mm Bore 0.25 Oversize CR 9.5 KIT Set of 4 Pistons
CP Pistons
CP Piston & Ring Set for Subaru EJ25 WRX STi - Bore (99.5mm) - Size (STD) - CR (10) - Set of 4
Clevite
Clevite Subaru 1815-2212cc Con Rod Bearing Set
Clevite
Clevite Subaru EJ Series 1990-2005 Con Rod Bearing Set
Manley Performance
Manley 04+ Subaru WRX STi (EJ257) 100.25mm Bore STD Stroke -17cc Dish
CP Pistons
CP Piston & Ring Set for Subaru EJ25 WRX STi - Bore (99.75mm) - Size (+0.25mm) - CR (10) - Set of 4
Manley Performance
Manley Subaru WRX / STI (EJ18/20/22/25) H Beam Connecting Rod Set
Wiseco
Wiseco Subaru EJ25 DOHC 4v InvDme -23cc 100mm Piston Shelf Stock Kit
Manley Performance
Manley Subaru WRX / STI (EJ205/STi EJ257) Turbo Tuff Pro Series I Beam Connecting Rod Set
JE Pistons
JE Pistons SUB WRX EJ205 79mm STR 92mm Bore CR 8.5 KIT Set of 4 Pistons
King Engine Bearings
King Engine Bearings 12-16 Subaru Impreza/13-17 Subaru Crosstrek (FB20) Connecting Rod Bearing Set
Eagle
Eagle Subaru EJ20/EJ25 Extreme Duty Connecting Rods (Set of 4)
CP Pistons
CP Piston & Ring Set for Subaru EJ257 WRX STI- Bore (100.0mm)-Size (+0.5mm)- CR (10.0) - Set of 4
Wiseco
Wiseco Subaru WRX 4v R/Dome 8.4:1 CR 93mm Piston Shelf Stock Kit
Clevite
Clevite Nissan 2.5L QR25DE 2002-06 Main Bearing Set
Eagle
Eagle Subaru EJ257 w/Forced Induction 100mm Bore H-Beam Rods 4340 Crank Stroker Rotating Assembly
Wiseco
Wiseco Subaru EJ257 WRX/STI 4v Dish -19cc 99.75 Piston Shelf Stock Kit
Manley Performance
Manley 15+ Subaru FA20 WRX 86.50mm +.5mm Bore 10:1 Dish Piston Set w/ Rings (Extreme Duty)
CP Pistons
CP Piston & Ring Set for Subaru EJ255 WRX - Bore (100.0mm) Size (+0.5mm) CR (8.4) *Single Piston*
CP Pistons
CP Piston & Ring Set for Subaru EJ257 WRX STi - Bore (100.5mm) - Size (+0.25mm) - CR (10) - Set
Manley Performance
Manley Subaru EJ25 100mm Bore / 1.209in CD Platinum Series -17cc Dish Extreme Duty Piston Set
Eagle
Eagle Subaru EJ257 w/Forced Induction 99.5mm Bore H-Beam Rods 4340 Crank Stroker Rotating Assembly
Competition Clutch
Competition Clutch 2004-2011 Subaru STI 15lb Steel Flywheel
Manley Performance
Manley 98+ Subaru WRX (EJ205) STD Stroke 92mm STD Bore 8.5:1 Dish Piston SINGLE PISTON
King Engine Bearings
King Engine Bearings Subaru FA20/Toyota 4U-GSE pMaxKote Performance Main Bearing Set - Size STD
JE Pistons
JE Pistons Subaru EJ25 Ultra Series 8.5:1 (Set of 4)
Wiseco
Wiseco Subaru EJ257 WRX/STI 4v Dish -19cc 100 Piston Shelf Stock Kit
Manley Performance
Manley 04+ Subaru WRX STi (EJ257) 83mm Stroker 100mm +0.5mm Bore 8.5:1 Dish Piston Set with Rings
JE Pistons
JE Pistons SUB STI EJ257 Block w/ EJ20 Head 99.75mm Bore 0.25 Oversize CR 9.5 KIT Set of 4 Pistons
Manley Performance
Manley 04+ Subaru WRX STi (EJ257) STD Stroke 99.75mm +.25mm Bore 9.8:1 Dish Piston Set with Rings
Manley Performance
Manley 98+ Subaru WRX (EJ205) 79mm +4mm Stroker 93mm +1mm Bore 8.5:1 Dish Single Piston with Rings
Manley Performance
Manley Subaru WRX EJ205/WRX STi EJ257 92.5mm Bore +0.5mm Oversize Bore 1.2mmx1.2mmx2.8mm Ring Set
Skunk2 Racing
Skunk2 Alpha Series Subaru EJ25 Connecting Rods
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