kenh
I see nothing I hear nothing
That's who makes the Summit Racing shorty headers. You can change the plugs without removing the headers but you have to get creative. Such as cutting down your plug socket so it is just long enough to get on the plug and allow the 3/8" square drive to turn it without hitting the electrode, or use a 5/8" box wrench, or a combination of plug socket and box wrench. A couple are easier done from below. Yes, it's fun but after a couple beers - no problem!
Maybe these are a different version????? There was no way on god's green earth to get a socket on some of the plugs. No matter how short it may be. Pulling the headers is not that big a deal. Top side is easy the right side is a bit painful though. Might be doing it again.......