Exactly, you can't just add it and expect the car to handle like an F1 car, but it will help and as part of a well thought out system it will make a difference.
Hey, Ross, what do you think. The guy over on dippy.org is thinking the inner fender braces aren't needed since the UCAs are "remote" on the F,M,Js, but I'm thinking the twist from engine torque would still be present if you're pulling hard out of a turn. Or am I over-thinking on the F's and M's?