m4gician
Hard-core CEG'er

At the top left where the mesh is on that plastic cover, is that as easy as I think it is? Oh LOL for cutting plastic, always heat up a stainless steel knife or cutting tool using fire, it makes this so much easier.
No, it's EXTREMELY hard to install. Requires welder, flux capacitor, plutonium, and a lightsaber.
Ok, seriously, just cut and install mesh of choice. There isn't much to it.
I really find it hard to believe its going to make that huge of a difference. I dont see the imrc cover trapping in that much heat, not to mention, the hood is still going to trap it in anyways. The heat source is coming from the valve cover. Even with that opening, heat still conducts and convects from the top of the valve cover through the BOTTOM of the IMRC. If you want some cooling, your going to need some source of forced convection. (i.e. fan)
Yeah I've seen when I changed the plugs but wasn't sure what it was for. Does it go bad often?