Furthermore, the Austrian tuning house claims that while the standard A4 2.0 TDI needs a distance of 1,600 meters (about a mile) to reach a speed of 180 km/h or 112mph, O.CTs version hits the mark after 1,100 meters or 0,7 miles.
Similary for the A3 Convertible, , O.CT Tuning's upgraded ECU adds an extra 45HP to the 1.8 TFSI 160HP engine for a total output of 205HP that helps the car accelerate from standstill to 100km/h in 7,3 seconds, or around 1 second faster than the standard model.
Even though O.CT Tuning concentrated on the A4 and A3 Convertible models, apparently the software upgrades apply on any models with the same engines.