Originally Posted by SouthArk370Z

As DE.50 pointed out, the TCM will not downshift if it would take you above red-line (or maybe just a hair above). As with the throttle*, you are flying-by-wire and don't have direct control. The car has a pretty strong self-preservation instinct. But that doesn't mean you should be depending on the limiter and bumping the red-line every time you downshift; it will eventually cause damage.


* Another "neat trick": press on the brake and the gas at the same time - the car will auto-magically limit the throttle until you let off the brake.