Looks good, as it mounts to the existing posts through the brace which are braced to the rear, whole chassis is braced front to rear..... rather than adding posts, drilling chassis (weakening) and additional posts won't be braced, the right angle is a weak point.... as per the other guy who's made a brace on this thread...
I also love how you've dremelled the material to shape in position, leaving soooo much dust on your C4.1! Very stylish
