There is certainly a torque limiter in the DSG transmission on all DSG models, be it gas or diesel. Where it's set per model is different, on the EA189 platform it is intrusive in certain scenarios with just an ecu tune. You could have power limited at times, such as mid corner, and because of that we consider it a required tune. You could run a stage 2 without DSG tuning, it's not recommended, and we always send two ECU tunes (one with stock torque) in that case. You could always try it out, just be safe and expect a power cut at some point, although it's fairly hard to test off a dyno. Mark and Keir experienced this on HPA's dyno like six? years ago. HPA was the first to start using DSGs in racing applications, they are local to us and we've taken these developments very seriously. We do custom DSG tuning on big power gas cars as well.
To get around the torque limiter you can falsify the torque output values to the transmission. As a result, the transmission will try to limit slip as it occurs, rather than correctly calculating how much force it needs to apply based off the values it's given. This can result in more heat build up, clutch wear, and potentially warping. That is an unprofessional way to tune a car.
