Subaru Impreza Engines by Year

Subaru's Impreza reached the US for 1993. This page covers the regular Impreza, 2.5RS, Outback Sport and 2.5GT; the turbocharged WRX and STI have their own page. Every Impreza has a flat-four.

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

First generation (1993–2001): 1993 · 1994 · 1995 · 1996 · 1997 · 1998 · 1999 · 2000 · 2001

Second generation (2002–2007): 2002 · 2003 · 2004 · 2005 · 2006 · 2007

Third generation (2008–2011): 2008 · 2009 · 2010 · 2011

Fourth generation (2012–2016): 2012 · 2013 · 2014 · 2015 · 2016

Fifth generation (2017–2023): 2017 · 2018 · 2019 · 2020 · 2021 · 2022 · 2023

Sixth generation (2024–2026): 2024 · 2025 · 2026

First generation (1993–2001)

The 1.8, 2.2 and 2.5 fours.

1993 Impreza engines

Engine	Rated	Offered in
1.8L / 111 flat-four (EJ18)	110 hp net	Base, L, LS

1994 Impreza engines

Engine	Rated	Offered in
1.8L / 111 flat-four (EJ18)	110 hp net	Base, L, LS

1995 Impreza engines

Engine	Rated	Offered in
1.8L / 111 flat-four (EJ18)	110 hp net	Base, L
2.2L / 135 flat-four EJ22E	135 hp net	LX, Outback wagon

1996 Impreza engines

Engine	Rated	Offered in
1.8L / 111 flat-four (EJ18)	110 hp net	Base, L, Brighton coupe
2.2L / 135 flat-four EJ22E	135 hp net	LX, Outback Sport wagon

1997 Impreza engines

Engine	Rated	Offered in
1.8L / 111 flat-four (EJ18)	115 hp net	Brighton coupe
2.2L / 135 flat-four EJ22E	137 hp net	L, Outback Sport wagon

1998 Impreza engines

Engine	Rated	Offered in
2.2L / 135 flat-four EJ22E	137 hp net	L, Outback Sport wagon
2.5L / 150 flat-four EJ25D	165 hp net	2.5RS coupe

1999 Impreza engines

Engine	Rated	Offered in
2.2L / 135 flat-four EJ22E	142 hp net	L, Outback Sport wagon
2.5L / 150 flat-four EJ251	165 hp net	2.5RS coupe

2000 Impreza engines

Engine	Rated	Offered in
2.2L / 135 flat-four EJ22E	142 hp net	L, Outback Sport wagon
2.5L / 150 flat-four EJ251	165 hp net	2.5RS coupe, 2.5RS sedan

2001 Impreza engines

Engine	Rated	Offered in
2.2L / 135 flat-four EJ22E	142 hp net	L, Outback Sport wagon
2.5L / 150 flat-four EJ251	165 hp net	2.5RS coupe, 2.5RS sedan

Second generation (2002–2007)

The 2.5.

2002 Impreza engines

Engine	Rated	Offered in
2.5L / 150 flat-four EJ251	165 hp net	2.5TS wagon, 2.5RS sedan, Outback Sport wagon

2003 Impreza engines

Engine	Rated	Offered in
2.5L / 150 flat-four EJ251	165 hp net	2.5TS wagon, 2.5RS sedan, Outback Sport wagon

2004 Impreza engines

Engine	Rated	Offered in
2.5L / 150 flat-four EJ253	165 hp net	2.5TS wagon, 2.5RS sedan, Outback Sport wagon

2005 Impreza engines

Engine	Rated	Offered in
2.5L / 150 flat-four EJ253	165 hp net	2.5RS Sport, 2.5RS sedan, Outback Sport wagon, Outback Sport Special Edition

2006 Impreza engines

Engine	Rated	Offered in
2.5L / 150 flat-four EJ253	173 hp net	2.5i sedan/wagon, Outback Sport, Outback Sport Special Edition

2007 Impreza engines

Engine	Rated	Offered in
2.5L / 150 flat-four EJ253	173 hp net	2.5i sedan/wagon, Outback Sport, Outback Sport Special Edition

Third generation (2008–2011)

The 2.5 and the 2.5GT turbo.

2008 Impreza engines

Engine	Rated	Offered in
2.5L / 150 flat-four EJ253	170 hp net	2.5i, Outback Sport

2009 Impreza engines

Engine	Rated	Offered in
2.5L / 150 flat-four EJ253	170 hp net	2.5i, Outback Sport, 2.5i Premium
2.5L / 150 flat-four turbo EJ255	224 hp net	2.5GT

2010 Impreza engines

Engine	Rated	Offered in
2.5L / 150 flat-four EJ253	170 hp net	2.5i, Outback Sport, 2.5i Premium
2.5L / 150 flat-four turbo EJ255	224 hp net	2.5GT

2011 Impreza engines

Engine	Rated	Offered in
2.5L / 150 flat-four EJ253	170 hp net	2.5i, Outback Sport, 2.5i Premium

Fourth generation (2012–2016)

The FB20 2.0.

2012 Impreza engines

Engine	Rated	Offered in
2.0L / 122 flat-four (FB20)	148 hp net	2.0i, 2.0i Premium, 2.0i Limited, 2.0i Sport Premium (5-door), 2.0i Sport Limited (5-door)

2013 Impreza engines

Engine	Rated	Offered in
2.0L / 122 flat-four (FB20)	148 hp net	2.0i, 2.0i Premium, 2.0i Limited, 2.0i Sport Premium (5-door), 2.0i Sport Limited (5-door)

2014 Impreza engines

Engine	Rated	Offered in
2.0L / 122 flat-four (FB20)	148 hp net	2.0i, 2.0i Premium, 2.0i Limited, 2.0i Sport Premium (5-door), 2.0i Sport Limited (5-door)

2015 Impreza engines

Engine	Rated	Offered in
2.0L / 122 flat-four (FB20)	148 hp net	2.0i, 2.0i Premium, 2.0i Limited, 2.0i Sport Premium (5-door), 2.0i Sport Limited (5-door)

2016 Impreza engines

Engine	Rated	Offered in
2.0L / 122 flat-four (FB20)	148 hp net	2.0i, 2.0i Premium, 2.0i Limited, 2.0i Sport Premium (5-door), 2.0i Sport Limited (5-door)

Fifth generation (2017–2023)

The direct-injected 2.0.

2017 Impreza engines

Engine	Rated	Offered in
2.0L / 122 flat-four FB20D	152 hp net	2.0i (Base), 2.0i Premium, 2.0i Sport, 2.0i Limited

2018 Impreza engines

Engine	Rated	Offered in
2.0L / 122 flat-four FB20D	152 hp net	2.0i (Base), 2.0i Premium, 2.0i Sport, 2.0i Limited

2019 Impreza engines

Engine	Rated	Offered in
2.0L / 122 flat-four FB20D	152 hp net	2.0i (Base), 2.0i Premium, 2.0i Sport, 2.0i Limited

2020 Impreza engines

Engine	Rated	Offered in
2.0L / 122 flat-four FB20D	152 hp net	2.0i (Base), 2.0i Premium, 2.0i Sport, 2.0i Limited

2021 Impreza engines

Engine	Rated	Offered in
2.0L / 122 flat-four FB20D	152 hp net	2.0i (Base), 2.0i Premium, 2.0i Sport, 2.0i Limited

2022 Impreza engines

Engine	Rated	Offered in
2.0L / 122 flat-four FB20D	152 hp net	2.0i (Base), 2.0i Premium, 2.0i Sport, 2.0i Limited

2023 Impreza engines

Engine	Rated	Offered in
2.0L / 122 flat-four FB20D	152 hp net	2.0i (Base), 2.0i Premium, 2.0i Sport, 2.0i Limited

Sixth generation (2024–2026)

The 2.0 and the 2.5 in the RS.

2024 Impreza engines

Engine	Rated	Offered in
2.0L / 122 flat-four FB20D	152 hp net	Base, Sport
2.5L / 152 flat-four FB25D	182 hp net	RS

2025 Impreza engines

Engine	Rated	Offered in
2.0L / 122 flat-four FB20D	152 hp net	Base, Sport
2.5L / 152 flat-four FB25D	182 hp net	RS

2026 Impreza engines

Engine	Rated	Offered in
2.0L / 122 flat-four FB20D	152 hp net	Base, Sport
2.5L / 152 flat-four FB25D	180 hp net	RS

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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