We are paying more attention to MRC Tuning these days after seeing their impressive B7 RS4 supercharger in action. This is a before and after dyno tune of a V10 Audi R8. The dyno used is a Cartec which we are not familiar with but it shows power at the crank, wheels, as well as the losses. Baseline was 514.7 wheel horsepower and after the tune it was 559.2 wheel horsepower making for an impressive gain of 44.5 wheel horsepower. A stage 2 setup is being tested as well shown in the video below.

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