I would say that this should be treated exactly like the pedal box, and any other change to standard. It’s a modification to the standard so needs to be declared to your insurer. And as said above some insurers won’t cover pedal boxes despite there being no alteration to standard power. Some will and it seems to depend on who picks up the phone and you do have to stress that there is NO increase in power output. Once explained. Most standard insurers really don’t know what apedal boxisor does, so you need to really explain it to them and hope the underwriter accepts it. DirectLine covered my pedal but I know of people who have had them refused by the same insurer. Strangely my insurance actually went down a couple of pounds once the pedal box was added on!
I’m interested in trying this new TCU+Gearbox box, and am seriously considering it. I would like to know if it changes the shift points of the DSG in the different modes D and S. Would it replicate in any way (obviously not custom), a DSG map in that respect?
If I do get one, then I’d definitely be declaring it and adding it onto the insurance policy.