The most recent tuning packages we’ve seen from Romeo Ferraris have been for some not-so-fast vehicles like the Abarth 500 and the Smart ForTwo. However, this time around, the Italian tuners have chosen the Audi RS6 to toy around with. The result of their work is a total of 720 HP and a top speed of 205 mph. Now that’s a real Audi RS model!

The tuning kit comes in two different engine upgrade stages. Stage one includes an ECU update and installation of two filters, allowing the Audi to get an extra 51hp. Not bad, but Stage two is oh-so-much better. This stage has the tuner optimizing the mapping of the two units (one per bank) and replacing the central component with high-performance metal catalysts combined with two 200-cell.[...]

Source: topspeed Tuning