Both of them have knowledge on working with and tuning the NSX. They can and do work on the NSX..like oil changes, brakes, fluid changes your basic stuff. As far as like, recharging your AC unit, you probably should go to the dealer because they do regular maintenance, tune-ups, and modifications. Bruce could tear down an NSX and put it back together since he had once prior.
They installed my supercharger, installed aem, fuel pump, injectors, and tuned it without any issues.