Been a little over a week since i spent 26 minutes (took me 2 minutes to find the bolt I dropped in the rocks) swapping out all 8 coils with my $108 set from Amazon and guess what...... Not a single hiccup so far. I installed a new catch can, I bought a cheap one, emptied it once and couldn't open again to check it. I took it off put in the vise and tried to open it with BFP's could not get it to open, gave up and replaced it with one that has a dipstick and anti seized the threads so i can open it when I have to.