warp9.9
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You will find out changing the plugs is easy once the plumbing is off . Might I suggest while your under the hood you pull, clean and re-crimp the low tension leads to the coils. Some have been known to work loose over time easy to tighten up with a pair of needle nose and will eliminate a little misfire monster from showing up and chasing you around for a while. Don't ask me how I knowSounds like a good method....Do they still use that huge airbox tupperware setup on the 2013?
I get why they do it from a physics point of view as the IAT is seated in large volume of isolated fluid(air) that does not conduct heat well(thanks to the tupper tank) and thus heatsoak the thermistor. Great idea in theory..not so great for serviceability. But hey just ordered my RAMAIR and next up is the DobecK AFR+ and all that tupperware is getting ripped out.
Man I get off tangent.....
The low tension leads are pretty easy to get at except #1 coil but it is worth the time for maintenance. And it like greasing the drive shaft splines is not listed in the maintenance manual. Just something most of us figured out over time.
low leads (Yeller) picture below on # 2 coil
Hope this helps.