Is anyone able to comment on which offers better chasis stiffening - Kenny Brown Extreme Matrix Brace or Maximum Motor Sports new Full Length SFC's? I have a 96 GT vert. with 73,000 miles, pretty stock except for the usually Flow Masters and K&N air filter, and really want to get rid of that vert. shake at highway speeds. The chasis is starting to show its age and I want to tighten it up as much as possible. Any thoughts?