The American tuner APR LLC has tuned the current AUDI RS7 with its twin-turbo 4,0-liter V8 from 560PS to a remarkable 728PS. The whole thing was achieved exclusively by means of a software upgrade. APR LLC offers 3 levels of tuning, level 1 brings the RS7 to 674PS or level 2 to 700PS, all driven with 93 octane gasoline. Level 3 then beats around with a huge 728PS which can be achieved with 100 octane fuel.
(Photos: APR LLC)
The APR LLC achieved all this with just the change of the software is remarkable. The cost of $ 3.000 doesn't seem excessive. The acceleration values of the 728PS version are extremely good with 2,9 seconds over 60 miles. The Ingolstadt native completed the quarter mile in just 11 seconds at a speed of 129 miles. If you consider that these values were created on the computer, the whole thing is even more impressive.