To the regular drivers and owners of the new Audi R8 V10 Plus you will probably be more than content with the output in standard configuration but there are always those few who seek just a bit more. Well in this case it is A LOT more, like double the output amount to 1250 horsepower thanks to a twin-turbo kit from Underground Racing. Their Stage 3 system comes with a fully rebuilt engine and develops 1,100 hp using 93 octane pump gas, and over 1,250 hp using MS109 high-octane race juice. As you would expect, the results are quite something and you can see for yourself in the video below.