dam I can't type on these small smart phones, what I was trying to say is, yes I thought it might be cylinder 1 but the original set I took off had the cylinder numbers stamped on them and the one with the gray boot is number 3. Just really curious why all are black boots but the one. Thought maybe my factory set was just a mishap but my replacement ones have the same thing :0)
Not sure on the boot color issue. I've always matched the new/ old wires by length. The factory coil pack is marked so when you hook up the new wires just make sure you connect them to the correct cylinder if you remove all of them tomatch lengths.