VB WRX Undertray Removal

Park your car in a flat, level area, and jack it up and support it properly.
Remove the 10 large plastic clips holding the front tray on using your trim tool. There are a few in each wheel well and the rest are vertical into the bottom of the car. These come out by pulling out on the center portion and then the outside portion should be released from the plastic.
The 5 smaller plastic trim clips work similarly and are all going into the metal skid plate of the car.
Last but not least, the two 12mm bolts in the front of the skid tray should allow it to be removed.