I got all coils from rockauto, didn't get motorcraft because I figured running cheaper coils for a while is better than running the bad few I had for a month until I could get motorcraft (I know, I know), put off plugs for some reason too, I don't remember why, but it was against my better judgement and all 8 got replaced with ngk platinums about 2 months later. I know what's coming next from you guys already so I will go ahead and swap all 8 coils and plugs again and do it properly this time. In my defense, I didn't really read this forum apart from the tech article on coils prior to swapping the coils either, so I didn't know this car is this picky at the time.