I purchased this strut tower brace when Jeanne and I attended the Golden Gate Getaway. I bought the brace from The Dealer Alternative booth, and Bill Cardell himself was there to install it for me.

Result: I have noticed a slight "stiffening" of the front of the car, most perceptible when I'm doing rapid turns. I already have Jakcson Racing sway bars on my car, so I would imagine that installing the strut tower brace bar by itself would have even more noticeable effect on the chasis.