Sounds like a bunch of BS from a people who don't even own the cars, have less than 100 posts on the forum. They are just pulling stuff out of their ass.. there are 5 threads on each forum for every 1 piston failure.. it's rare, nothing most people should even worry about, only common denominator has been 93 octane tunes. how many cases are there? 6 of these? and these knuckleheads probably haven't worked on any of the 5.0's that blew it before or afterward, what makes them think they are an authority? I see a ton of people signing up in the past couple of months to throw their 2 cents on the subject i doubt many of them even own a mustang, let alone a 5.0.
a little shy of the 5.0 because of the #8 piston issue? get a 91 tune and run 93 octane. or just 91 if you want since those don't seem to be having issues.
The idea that they are "maxed out from the factory" is just insane, the same people keep spouting the same ridiculous nonsense and they have no clue. especially when the vast majority of people with tuned N/A 5.0s aren't seeing this problem.
