VF Engineering is really into breaking the mold when it comes to developing programs for some of the world’s finest supercars. The American aftermarket company definitely knows a power upgrade when they see one and their latest offering for the mighty German beast, the Audi R8 V10, is no different.

With some help from fellow Audi aftermarket wizard Stassis Engineering, VF Engineering took the R8 V10’s massive 5.2-liter engine and made serious work out of it, highlighted by the addition of a bolt on roots style supercharger system and an Eaton/Magnuson TVS2300 four-lobe roots blower with an air/water aftercooling system that boosts up the R8 V10’s output from the standard 520 horsepower and 390 pounds-per-feet of torque figures all the way up to 720 horsepower and 590 pounds-per-feet of torque. That impressive bump in output is particularly jacked up because of the resulting lag-free instant punch of 5psi from as little as 2,000rpm, with the boost gradually climbing all the way up to 6.5psi at redline.

And should the R8 V10 be using a 91 or 93 octane, the stock engine programming is then recalibrated by VF courtesy of an OBD2 port electronic flash.

For all of the program’s downright awesomeness, there is one bit of bad news out there for anybody interested in getting this package. It’s not compliant with the California Air Resourse Board and cannot be used on public roads in California

Original article posted by TopSpeed. December 20, 2012.