So I just now tried to take off my 5 year old Year One RH exhaust manifold. Apparently I didn't remember that the front 2nd nut does not have enough room for a socket, and must use an open end. Well, it felt like I stripped it a bit with one turn. Got pissed off ( also because the 5th one in back feels like it's turning out the stud ) so I put it back together & went for a cruise. DAMN nice car, DAMN PITA to work on.