1 Its awesome to have some early adopters in the mix, ive been meaning to buy a few of those high wattage CREE LEDs just to play with : )
2. you may very well need a relay to fire the LEDs, unfortunatly they can be rather specific about input voltage.
I would start with a relay and if that doesnt work you might try the lamps on a bench tester first,
13 WRX Hatch - Torqued Performance Stage 1+
Slow is Smooth > Smooth is Fast