On a 2005 - 2009 GT, I always assumed that the coil packs included the spark plug boots and that the boot was not sold separately. I've got a quote from the Ford Dealer to change plugs, boots & wires, but when I questioned "boots", I asked, do you mean the coil pack&boot? He said his computer just says boot. I called Summit Racing and they state that they don't sell the boots separately, their part of the entire coil pack. Q1. Are the boots sold separately? Q2. Why would I just change the boot and not the entire coil pack (coil & boot) as well?