Custom dyno tuning solutions developed for a wide range of European performance vehicles.
We achieve maximum safe power results using real data.
Underground Performance runs through a rigorous process for each customer experience. We assess each vehicle for health with a stock run for data acquisition, re-calibrate, run again and adjust until the safe maximum power level is achieved. We make power in a linear and smooth fashion to the redline rather than low end theatrics seen elsewhere. Expect response, flexibility and enjoyment throughout the rev-range with continued reliable function.