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Shop fuel system parts for the Subaru WRX STI 2015-2021 (VA chassis). The VA STI's EJ257 2.5-litre turbocharged flat-four shows its fueling limits on the S209, whose power gain required a new high-flow fuel pump and larger fuel injectors over the standard car. You will find fuel pumps, injectors, rails, lines and flex-fuel kits here — every part in this collection is fitment-tagged for the Subaru WRX STI 2015-2021 (VA chassis), so check your year against the product fitment notes before ordering.
Every fuel system part in this collection is fitment-tagged for the VA-chassis WRX STI (2015-2021) and its EJ257 engine. Standard cars and the S209 do not share the same factory fueling hardware, so confirm your year and edition on the product page before ordering.
Fuel system capacity is part of any VA power build. Subaru proved the point with the S209: its power gain over the standard EJ257 required a new high-flow fuel pump and larger fuel injectors, so size pumps and injectors to your power target rather than assuming the stock system has headroom.
Start with the full Subaru STi 2015-2021 collection linked at the top of this page, or jump straight to a category — Brakes, Drivetrain, Engine, Tuning, Exhaust, Exterior and more are all linked above, and every one of them is scoped to the Subaru STi 2015-2021 only.