E cutouts!

I know at least 1 boosted member has one, and Bean's brought it up before I think, but anyone else running an e cutout or have experiences with them? I'm thinking it might not be a bad idea for when I run at the strip as I don't care about sound levels at all there, but I could be nice and stealthy in neighborhoods. Just don't know how the car will react to a real free-flow exhaust (like will I lose a ton of torque on the low end when engaged?). If u don't know what it is then you have nothing to contribute.