The 997 911 might be in its twilight, but the GT2 is still a potent piece of machinery. Of course, it could be more powerful still, and Kubatech set out to prove it. No flashy gimmicks on this car, Kubatech only made modifications which make the car faster. The main upgrade was the modified turbos , and power is increased from 523hp to 648hp, definitely a gain you'll notice. The price comes in at €23,000. Not a small amount of money, but cheap for this kind of thing.