No idea, sorry, Matt6494. Just saw this video on a YouTube channel I subscribe to and shared it. Looks like a piggyback ECU only.
According to Richter Motorsport website: "consisting of: ABT-ECU (AEC), bracket set, cable harness and mounting kit. In this technology, the ABT Power Software is used in an additional engine control unit, the ABT Engine Control (AEC). Thus, ABT ensures the high standard in performance increase also in new developments and increasing high-tech in vehicles. Your advantage: The serial engine control unit remains untouched and the vehicle is completely diagnosable. And when it comes to the quality of AEC, the high standards of the VW Group apply. Audi S1 (8X0) 2,0 ltr. TFSI from 170 kW (231 HP), 370 Nm to approx. 228 kW (310 HP), 440 Nm."
Ian Whiffen on here has had the ABT kit fitted. Round about the £2,000 mark, I think.