This Audi RS4 called “Hulk” was built by Klaus Peter Krenmayr and his company Turboelite in Linz, Austria. The wagon is no longer powered by the factory twin-turbo 2.7 L V6. Instead it’s got a turbocharged 3.2 L VR6 making 1,000 horsepower and 952 Nm (702 lb-ft) of torque on 2 bar (29 psi) of boost from a Comp Turbo CT5X turbocharger. The engine was built to handle 2.4-2.5 bar (34-36 psi) of boost but no word on if they will ever push it that far.
Source: Turboelite FB page and @turboelite_com via 1320Video FB page