I cannot remember the ones I had but i did have a little issue in fitting them.
When removing the coil packs there is a wire that you need to unbolt first before undoing the next nut to remove the coil pack
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Just make sure you have a spanner on the nut on top as well as the one below it. I actually had to take one of my spanners and grind it down a bit so it coulds slide onto the bottom nut
I went a bit ham fisted on the first one with just one spanner and the bolt I thought was captive in the head wasn't. It twisted and I actually snapped the wire by accident
Bit of soldering was needed and its all good now but best to know beforehand
