This guide may have things that you will not need to do and can be applied to any car.
As always, Read the instructions with the kit.
I am doing this on my GE 2011 Impreza.
1:
Grab some tools, I needed a 10mm spanner, 11mm socket, A 3mm flat head screw driver(for popping off air intake duct clips). A multimeter and a work light(not pictured).
2:
Grab your LED kit and place it some where, I ended up resting mine on some ramps
3:
Disconnect and remove the battery(If need be) on my impreza and on my previous car this helped alot when working on the headlights.
4: I removed the air intake duct cover, if your car does not need this step, skip it
5:
I removed the old bulb and placed the collar from the kit in the housing and placed the clip in place
6:
Install the LED bulb into the collar and make sure it is tight
7:
Connect the LED driver to the H7 connector and the LED bulb
8:
If you can tuck the wires away, otherwise you will need to make a hole in the dust cover
9:
Reinstall the battery and test
You will go from Old and Ugly
To New Hotness
10:
When ever working on the headlights, realign them according to the service manual
