Geoff at Hilltop remapped my Kawasaki 1400 GTR and it was awesome afterwards, no idea if the same difference can be gained on my DVT, I await other comments.
Very unlikely that your mate can remap a DVT. Rexxer do but I have heard they have had issues with it. Seems like the best option, which also has auto adaptive parameters, is the rapid bike evo.
To confirm my Termi system was fitted by main dealers when 1st service was done. 2017 1200S. Only pops & bangs when shut off throttle not while accelerating. Does not shoot flames either & definitely says racing see pic just taken.