can any shop 're-gap' the plugs?
i would guess that one shouldn't ask their local Ford dealer to do it; right?
also, is there any thread that has the complete break down of what to do and expect when getting a tune? does unleash and Livernois tell you exactly what to do? i hadn't heard about people changing the thermostat before this thread and only saw recommendations about the spark plugs recently.
i'm definitely going to do it, once i put a few more miles on my MKS (i negotiated hard to get the dealer to throw in an extended warranty) the first thing the sales manager said was the waranty is voided if you tune the engine! i was surprised because i brought my MKS from a Lexus dealership, but he knew right away about playing with turbos...