The Audi R8 GT is limited to only 333 units worldwide, so you can imagine that the chance to own one is pretty rare. For us, a base R8 GT->ke1440 is powerful enough from factory and it needs no upgrades. If you forgot, it is powered by a 5.2 V-10 engine that delivers a total of 560 horsepower and 398 pound-feet of torque. This amount of power is enough to sprint the car from 0 to 60 mph in 3.6 seconds and up to 198 mph.

But, what while we consider this amount of power quite enough for a sports car, the guys over Underground Racing decided the R8 GT can do much better so they developed a first upgrade package for it.

The kit is called Stage 2R Twin Turbo and was specially developed for a customer that opted for the FULL 2R build. This setup makes an easy 1,150 whp on 93 octane pump gas and more than 1,800 whp on race gas.

Click past the jump to read more about the Audi R8 GT by Underground Racing.

2013 Audi R8 GT by Underground Racing

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  • Model: 2013 Audi R8 GT by Underground Racing
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Audi R8 GT by Underground Racing in Detail

This cool R8 GT was also equipped with a JRR Plug & Play Motec ECU system with custom Egear harness, full billet 1-6 custom ratio, billet input/output shafts, billet final drive gears and a helix billet deferential.

The car is painted in a very cool gray exterior paint, combined with a full billet intake that as been anodized black and numerous carbon fiber elements.