"Make sure they do this"
"Make sure they use a full kit"
"Make sure they provide only OEM..."

You fckers have got no clue. The dealers best interest is to make the problem go away, at the least most effort and least most cost. If it means using some rubber goo shit to seal the leak for 3+ months, then that's what will be done. If it means spraying some contact cleaner on air flow meters for a fix, thats what will be done.