Yes the legacy can fit the motor, they are dimensionally the same on the outside. The only issue you will have is the turbo setup. The cross member will not allow the exhaust piping to work. So you would have to go all custom for piping. However, you can get the cross member from an early 90s turbo legacy and it will bolt right in. Assuming you have a 90-99 legacy. If you want to learn more check out sl-i.net
The same as a 2003 subaru legacy
Subaru Impreza WRX was created in 1992.
Subaru Impreza GT (2009) Subaru Impreza WRX Subaru Impreza WRX STI
The 2015 Subaru WRX has 16 valves.
The base hp of a 2005 Subaru WRX is 227
Subaru Impreza WRX STI was created in 1992.
The 2015 Subaru WRX is a gas-powered vehicle.
The 2015 Subaru WRX has a 6-speed manual.
The 2015 Subaru WRX has a flat 4 engine.
The 2015 Subaru WRX is 15 ft. 0.9 in. (180.9 in.) long.
The 2013 Subaru Impreza-WRX has 16 valves.
The height of the 2015 Subaru WRX is 4 ft. 10.1 in. (58.1 in.).