cdynaco is right. The strut brace is makes its most noticeable difference in daily driving when your car passes over uneven or rough spots on the road surface. It will keep the front end planted and prevent drifting, pushing or the "mushy" feeling. I'm sure it makes a difference during all manner of cornering but you just don't notice it until you really push the car hard in a curve.

 

Here is how mine looks on my 09 V6 Convertible.

 

Nice touch with the strut tower caps Autonut.

 

Thanks, had to do some trimming to get them to fit.