Now, G-power did not provide any photos the motor build. They also did not show the crank or the bore x stroke specs. We also get no dynograph to prove the output is what it is. It does not help the plaque inside the car says "4.0 Kompressor." We are essentially taking their word for it and we hate how big name European tuners just expect us to believe what they say because of their name. We do not doubt they did this but some supporting material would be appreciated especially for those who would like to purchase this same setup.
The output of 720 horses is definitely believable but does not surpass what stock internal M3's have put down. We expect more but no doubt there is a lot more under the curve here. The exhaust system is full titanium lowering weight by 50 pounds.
We will contact G-Power who hopefully will give us more details about this awesome build.