Subaru EJ20 Performance Engine Parts
Shop performance and replacement parts for the Subaru EJ20 engine (2.0L boxer 4-cylinder), found in the Subaru Impreza WRX and STI. Browse engine, turbo and intake upgrades, exhaust, clutches, fuel, ignition, cooling, mounts and more from top aftermarket brands.
Confirm fitment for your exact year, model and trim on each product page before ordering.
Subaru EJ20 FAQ (4 questions)
What cars use the Subaru EJ20 engine?
The Subaru EJ20 (2.0L boxer 4-cylinder) is found in the Subaru Impreza WRX and STI. Always check the year, model and trim fitment table on each product page.
What are the most popular EJ20 upgrades?
Popular EJ20 upgrades include turbos, intercoolers, up-pipes and downpipes, fuel injectors and pumps, head studs and gaskets, and clutches. Browse every category for the Subaru EJ20 using the category list on this page.
How do I make sure a part fits my EJ20?
Every part on this page is listed by the manufacturer for the Subaru EJ20. Check the fitment table on the product page and match the manufacturer part number. Save your engine with the engine selector to see a “Fits your Subaru EJ20” badge on parts, or use Ask an expert if you’re unsure.
How fast do EJ20 parts ship?
In-stock parts ordered before 2:30pm Pacific ship the next business day, and Friday orders placed before noon ship the same day. Special-order parts ship from the manufacturer; use Request ETA on the product page for a date.


























