The Flat 4 engine has a very special design that allows you to have a very good balance between the reciprocating parts and it enhance the efficiency of the air cooling system.
The 2013 Subaru Outback has a flat 4 engine.
The 2006 Subaru Forester has a flat 4 engine.
The 2009 Subaru Impreza has a flat 4 engine.
The 2005 Subaru Impreza has a flat 4 engine.
The 2008 Subaru Legacy has a flat 4 engine.
The 2001 Subaru Impreza has a flat 4 engine.
The 2002 Subaru Outback has a flat 4 engine.
The 2001 Subaru Forester has a flat 4 engine.
The 2005 Subaru Forester has a flat 4 engine.
The 2003 Subaru Outback has a flat 4 engine.
The 2006 Subaru Legacy has a flat 4 engine.
The 2002 Subaru Forester has a flat 4 engine.