Yes, your list is still the best bang for the buck minus perhaps the spark plugs? I am not sure what the factory is sticking in the MKT's.. but I am guessing the SP-534's? If they are, depending on mileage of the vehicle, you can just pull them out an gap them down if needed...
Not much has changed in 3 years unless you are going for big power with meth, upgraded turbos, E blending, etc..the basics are still the basics,... Tune, 3BAR, Tstat, properly gapped plugs.
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