BTW, the rev limiter can be turned off with practically any canned tuner or tune
Depends on the vehicle and the tuner, for the Mopars with the DiabloSport tuners there was an option to raise the Rev limiter, but no option to completely remove it unless you plugged in your laptop and bought the cmr license. For the newer GM models I'm seeing Pedal Commander and other similar products, but no real tuning options available at this point.