RALLY DNA IN A SEDAN
From the 2.0 EJ20 to the modern FA24 — Subaru's boxer-turbo AWD weapon.
Subaru WRX HERITAGE
WORLD RALLY-BRED PERFORMANCE
MOTORMIA WRX builds span time-attack track cars, rally-cross dirt builds, drag-strip launches, and daily-driven sport sedans. The EJ20 / EJ25 / FA20DIT / FA24 engine platforms each have dedicated tuning ecosystems for ECU calibration, fueling, and turbo upgrades.
Subaru WRX ON MOTORMIA
THE NUMBERS
CATEGORIES
Top product categories for the Subaru WRX
BRANDS
Top brands for Subaru WRX builds
READY TO BUILD YOUR SUBARU WRX?
Pick your year and trim to shop verified-fit Subaru WRX parts.
Shop all Subaru WRX parts →FAQ
Frequently Asked Questions About the Subaru WRX
What are the best aftermarket parts brands for the Subaru WRX?
The top brands MOTORMIA owners trust for Subaru WRX builds are EBC, Mishimoto, PowerStop, Whiteline, and HKS. The catalog carries 4,393 parts that fit the WRX. 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 WRX to modify?
The most-modified WRX trims are STI (especially GD/GR/GV). These trims typically came with performance-focused suspension, brakes, and engine options that give a higher starting point. That said, the WRX's engine family (EJ20, EJ25, FA20DIT, FA24) 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 WRX?
For most Subaru WRX builds, the recommended modification order is: ECU tune → intake → downpipe → turbo upgrade → fuel system. 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 WRX builds at every power level.
How does the Subaru WRX aftermarket compare to the Mitsubishi Lancer Evolution?
The Subaru WRX is the rally-bred boxer-turbo AWD platform with the deepest engine-management ecosystem. On MOTORMIA, 4,393 parts fit the WRX across 5,000+ active member builds, with an average part MSRP of $878. The decision usually comes down to which platform you own — both have full bolt-on catalogs.
Will any Subaru WRX part fit my year and trim?
Not always. The Subaru WRX has had multiple generations and engine changes (e.g., EJ20, EJ25, FA20DIT, FA24), 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 WRX 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 WRX parts?
Yes. Most Subaru WRX 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.
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Build your Subaru WRX with Mia
Personalized Subaru WRX mod recommendations, verified fitment from real WRX owners, and a garage that tracks every part on your build.
- Mod recommendations tuned to your WRX year, trim, and submodel
- Verified fitment data from 5,000+ Subaru WRX member builds
- Performance gain estimates based on real-world results
- Save your garage and track every part you've installed