So the guy with the Froniter in PA uses the SLR headers, and has no problem with emissions? So with the headers he replaced the PRIMARY cats, but the secondary/lower cats were enough to pass federal emissions... Wow, so were all running at California emissions?

Then putting on the SLR headers should be alot bigger power increase cause were also removing 2 cat's. I'm stating the obvious because I'm confused as to why more people aren't getting these headers? Other than the uneeded holes (which can be fixed), what else is stopping us from using this?