Supercharged Autocross Mustang = Not good at drag racing

Grant goes head to head against a bolt on 2015 Mustang GT with his newly supercharged Mustang. The Mustang makes 441whp and 399wtq. Though is on Nexen Nfera Sur4 road track tires and not to mention a road track stiff suspension. Still managed a 13.1 at 113mph which is laughably bad. The car did the exact same time non supercharged on Nitto NT555 tires and Eibach prodamper suspension while making 339whp.