I tuned it originally to be a Veyron killer for online, but the limited powerband just doesnt have enough oomph to push it past the 8.3 threshold. Not that I've seen, anyway. Im sure theyll make a hybrid version with Viper powerband or whatever and it'll crack low 8.1s, or even 8 flat. Wouldnt change the horsepower, just make it more torquey and bigger area of power.