The Impreza WRX hatchback (GR7) was tested with the Sustec Pro S-0C coilovers (Part #: TSC162):

WRX on the lowest ride height setting:

We fitted the Tanabe Underbrace for 2011 WRX hatchback. This 4 point underbrace will connect key points in the chassis to prevent unwanted behavior during "spirited" driving. 

Here we are testing a Strut Tower Bar for the 2011 Subaru WRX. Everything fit great up until we tried closing the hood. There is a duct that hits the hood so rotating the angle of the tower bar back was an easy remedy. Take a look at the pictures. 

This is where the IC duct hits the bar

And a quick rotation of the bar and it fits great!

Stock height

Max height setting

Lowest ride height setting