GeigerCars has given a significant power increase to the Mustang Shelby GT500. The car’s output was pumped up from 540 PS (397 kW / 533 bhp) to an impressive 810 PS (596 kW / 799 bhp).Torque on the 5.4-liter V8 engine was increased up to 945 Nm (697 lb-ft). The power improvements are in part […] ↓ Read the rest of this entry…