FYI, book time "per tire" set by Acura is 1 full hour for the NSX. that is double the book for a "regular" Acura.. They get the rates direct from HO. i found this out by digging and asking thoughtful and respectful questions to my service rep.. Supposedly the tire change includes mandatory brake inspections, rotor checks blah blah blah and has to be requested to be done too while the cars are on warranty.. That led to a more, um, seriously??? conversation as I pointed out that i had a tire removed and reinstalled and balanced for 35 bucks when a rim needed a refinish.. Long story short, after having a pleasant yet informed discussion back and forth, my service rep gave me a great price on a pair of cont-6s for the rear as well as a reasonable rate for installing the 2 tires (while it was in for the window garnish). Moral of the story, be informed, talk intelligently, respectfully and don't be a dick and you'll get great service from your Acura Dealership that is way more flexible... (in most cases, we know the exceptions,,, )