SHELBY GT 350 Member
Joined: Oct 2010
Location: Desert Southwest
Both the factory and the Bama tunes actually "bog" the car a bit at greater than 7500K. You can't accelerate any higher as the computer will not let you. It will momentarily feel as if the engine has stalled and might scare the willies out of you the first time you do it. This is a decent "fail safe" to keep you out of the high end of the red zone and spare your engine.
Interestingly, the 2012 Boss' tach is mechanically limited at 9,000 RPM but that's a whole different story.