Audi R8 GT by Underground Racing

Charlotte-based tuning specialist Underground Racing has released details of a customer’s insanely-powered twin-turbocharged Audi R8 GT.

Already developing 412 kW (560 hp) from its 5.2-litre V10 engine, Underground Racing applied its Stage 2 Race package, which comprises a pair of custom turbocharger units mounted on the company’s new billet air intake, and RR Plug & Play Motec ECU system with custom E-gear wiring harness. The end result is a stonking 1,150 whp on 93 octane pump petrol and over 1,800 whp on race fuel.

Sensibly, the transmission was upgraded accordingly, with a helix billet differential, a full billet 1-6 custom ratio, billet input/output shafts and billet final drive gears.

We’ve been promised a video of the car in action very soon.

[Source: Underground Racing]

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