I really want a tuning box,but have been put of by suggestions that if there was for example a engine failure, vw can read the data from the ecu & question why the torque was so high.
A tuning box is like remapping the ecu for more bhp but you can unplug it very quickly,like maybe when it due a service.
My bad, I'll probably put one on anyway,as having a mapped mk5 gti dsg for 6 years without any issues.