These all have knock sensors and the AOR will adjust. I have 2 tunes either way. 87 and 91. I just wouldn't run 87 on a 91 tune and hammer it all the time. I'm sure the knock sensors would take over but I prefer not to have the ECU pull so much timing to compensate. Only takes a few minutes to switch a tune anyway.Sounds good enough for me then.
Does he have an adaptive tune that adjusts to the octane rating of what is in the tank?
Glad to see my light mod catching on Looking goodDid the Amazon grille lights. I decided to mount them with screws instead of epoxy. I trust screws more myself.