In the normal sense of boost fool...it does not. I believe it is more of a raising of the boost defuel settings....
Even with the SC alone, seeing well over 22 psi was easy.
I dont think running the fooler would hurt, but probably not needed.
For the 50-100 bucks i spent on it, i couldnt be happier. It adds the right amount of driveability, gets superb mileage of driven right and corrects for tire size
I see close to 23 on mice drives, and roughly 17.5 around town (mostly about 45 mph)