Originally Posted by
190mph
You see a few of these aftermarket companies making 4mm carbon fiber shock towers claiming thicker and better to address the breakage.
I just measured my B6 towers and it is 3.6mm for rear and 4.15mm for front so I don't see the main point on buying those yet.
I would say make 4.5mm towers maybe even 5mm and more material on the ears around the holes for the upper shock mounts also needed.
It's not so much the thickness, but also the quality of carbon. Diggity Designs for example uses only quasi isotropic laminate which is much stronger. I'm not sure what the other aftermarket companies use