Subaru WRX Engines by Year

Subaru brought the turbocharged Impreza WRX to the US for 2002 and the STI for 2004. Every engine is a turbocharged flat four. The STI ended after 2021.

Pick a year to see every engine offered that model year, with its code, rated horsepower and the trims it came in. Each engine links to its full specs.

Jump to a year

Impreza WRX (GD/GG): 2002 · 2003 · 2004 · 2005 · 2006 · 2007

Impreza WRX (GR/GV): 2008 · 2009 · 2010 · 2011 · 2012 · 2013 · 2014

WRX (VA): 2015 · 2016 · 2017 · 2018 · 2019 · 2020 · 2021

WRX (VB): 2022 · 2023 · 2024 · 2025 · 2026

Impreza WRX (GD/GG) (2002–2007)

The 2.0 EJ205, the 2.5 EJ255 from 2006, and the EJ257 in the STI.

2002 WRX engines

Engine	Rated	Offered in
2.0L / 122 flat-four turbo EJ205	227 hp net	WRX sedan, WRX wagon

2003 WRX engines

Engine	Rated	Offered in
2.0L / 122 flat-four turbo EJ205	227 hp net	WRX sedan, WRX wagon

2004 WRX engines

Engine	Rated	Offered in
2.0L / 122 flat-four turbo EJ205	227 hp net	WRX sedan, WRX wagon
2.5L / 150 flat-four turbo EJ257	300 hp net	WRX STI sedan

2005 WRX engines

Engine	Rated	Offered in
2.0L / 122 flat-four turbo EJ205	227 hp net	WRX sedan, WRX wagon
2.5L / 150 flat-four turbo EJ257	300 hp net	WRX STI sedan

2006 WRX engines

Engine	Rated	Offered in
2.5L / 150 flat-four turbo EJ255	230 hp net	WRX sedan, WRX wagon, WRX TR (2007)
2.5L / 150 flat-four turbo EJ257	300 hp net	WRX STI sedan, WRX STI Limited (2007)

2007 WRX engines

Engine	Rated	Offered in
2.5L / 150 flat-four turbo EJ255	230 hp net	WRX sedan, WRX wagon, WRX TR (2007)
2.5L / 150 flat-four turbo EJ257	300 hp net	WRX STI sedan, WRX STI Limited (2007)

Impreza WRX (GR/GV) (2008–2014)

The EJ255 and, in the STI, the EJ257.

2008 WRX engines

Engine	Rated	Offered in
2.5L / 150 flat-four turbo EJ255	224 hp net	WRX sedan, WRX hatchback
2.5L / 150 flat-four turbo EJ257	305 hp net	WRX STI hatchback

2009 WRX engines

Engine	Rated	Offered in
2.5L / 150 flat-four turbo EJ255	265 hp net	WRX sedan, WRX hatchback
2.5L / 150 flat-four turbo EJ257	305 hp net	WRX STI hatchback

2010 WRX engines

Engine	Rated	Offered in
2.5L / 150 flat-four turbo EJ255	265 hp net	WRX sedan, WRX hatchback
2.5L / 150 flat-four turbo EJ257	305 hp net	WRX STI hatchback

2011 WRX engines

Engine	Rated	Offered in
2.5L / 150 flat-four turbo EJ255	265 hp net	WRX sedan, WRX hatchback
2.5L / 150 flat-four turbo EJ257	305 hp net	WRX STI hatchback, WRX STI sedan

2012 WRX engines

Engine	Rated	Offered in
2.5L / 150 flat-four turbo EJ255	265 hp net	WRX sedan, WRX hatchback
2.5L / 150 flat-four turbo EJ257	305 hp net	WRX STI hatchback, WRX STI sedan

2013 WRX engines

Engine	Rated	Offered in
2.5L / 150 flat-four turbo EJ255	265 hp net	WRX sedan, WRX hatchback
2.5L / 150 flat-four turbo EJ257	305 hp net	WRX STI hatchback, WRX STI sedan

2014 WRX engines

Engine	Rated	Offered in
2.5L / 150 flat-four turbo EJ255	265 hp net	WRX sedan, WRX hatchback
2.5L / 150 flat-four turbo EJ257	305 hp net	WRX STI hatchback, WRX STI sedan

WRX (VA) (2015–2021)

The 2.0 FA20DIT and the EJ257 in the STI, including the limited Type RA and S209.

2015 WRX engines

Engine	Rated	Offered in
2.0L / 122 flat-four turbo FA20DIT	268 hp net	WRX, WRX Premium, WRX Limited
2.5L / 150 flat-four turbo EJ257	305 hp net	WRX STI, WRX STI Limited

2016 WRX engines

Engine	Rated	Offered in
2.0L / 122 flat-four turbo FA20DIT	268 hp net	WRX, WRX Premium, WRX Limited
2.5L / 150 flat-four turbo EJ257	305 hp net	WRX STI, WRX STI Limited

2017 WRX engines

Engine	Rated	Offered in
2.0L / 122 flat-four turbo FA20DIT	268 hp net	WRX, WRX Premium, WRX Limited
2.5L / 150 flat-four turbo EJ257	305 hp net	WRX STI, WRX STI Limited

2018 WRX engines

Engine	Rated	Offered in
2.0L / 122 flat-four turbo FA20DIT	268 hp net	WRX, WRX Premium, WRX Limited
2.5L / 150 flat-four turbo EJ257	305 hp net	WRX STI, WRX STI Limited
2.5L / 150 flat-four EJ257	310 hp net	WRX STI Type RA (500 units)

2019 WRX engines

Engine	Rated	Offered in
2.0L / 122 flat-four turbo FA20DIT	268 hp net	WRX, WRX Premium, WRX Limited
2.5L / 150 flat-four turbo EJ257	310 hp net	WRX STI, WRX STI Limited
2.5L / 150 flat-four EJ257	341 hp net	STI S209 (209 units, STI-built)

2020 WRX engines

Engine	Rated	Offered in
2.0L / 122 flat-four turbo FA20DIT	268 hp net	WRX, WRX Premium, WRX Limited
2.5L / 150 flat-four turbo EJ257	310 hp net	WRX STI, WRX STI Limited

2021 WRX engines

Engine	Rated	Offered in
2.0L / 122 flat-four turbo FA20DIT	268 hp net	WRX, WRX Premium, WRX Limited
2.5L / 150 flat-four turbo EJ257	310 hp net	WRX STI, WRX STI Limited

WRX (VB) (2022–2026)

The 2.4 FA24DIT; there is no STI.

2022 WRX engines

Engine	Rated	Offered in
2.4L / 146 flat-four turbo FA24DIT	271 hp net	WRX, Premium, Limited, GT, TS

2023 WRX engines

Engine	Rated	Offered in
2.4L / 146 flat-four turbo FA24DIT	271 hp net	WRX, Premium, Limited, GT, TS

2024 WRX engines

Engine	Rated	Offered in
2.4L / 146 flat-four turbo FA24DIT	271 hp net	WRX, Premium, Limited, GT, TS

2025 WRX engines

Engine	Rated	Offered in
2.4L / 146 flat-four turbo FA24DIT	271 hp net	WRX, Premium, Limited, GT, TS

2026 WRX engines

Engine	Rated	Offered in
2.4L / 146 flat-four turbo FA24DIT	271 hp net	Base, Premium, Limited, GT, TS, Series.Yellow

Working on one of these engines?

• Engine displacement from bore and stroke
• Static and dynamic compression ratio
• Which camshaft for your build
• What size carburetor
• Horsepower to torque at any RPM
• Torque converter stall speed

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