Dont believe the vortech kit works on the cougar. we dont have as much room beside the timing belt side of the car as the focus does. I had to get creative with one of my alt bolts because of this with my JRSC.
The only SC confirmed to fit in a cougar is the Jackson racing supercharger (mine is the svt kit that took modifications to fit) the base kit fits easier and uses a smaller blower. The powerworks SC for a focus "might" fit. But looking at pictures it seems to me that our axle would get in the way of it (mounted higher then on a focus)