Here are more details about them than you'd ever think you'd want to know:

https://www.crossfireforum.org/forum...2-screens.html

Driver's side is a snug fit, but snug = good. I still used band clamps on both sides, for added insurance.

The TVT pipes were much sexier but these flow enough for me not to notice a difference, and the heat retention of the MB pipes is MUCH lower. I can make a hard run, pop the hood, and lay my hand on them. You could never do that with the metal pipes.