No, its an actual kit. (wires, plugs, clips, etc)
The on the 08's, only the STI had the footwell illumination. However, the WRX's did not, even tho they came with the empty holes to PLACE the LED's.
This could be wired manually with some wire, resistors, blah blah blah, but I'm lazy, and subaru makes a plug'n'play kit, so why not?