That sound at 0:54 is exactly what mine is doing - clunking sort of noise when upshifting from 1-2, and 2-3 (and sometime downshifts too). Was this fixed when you replaced the torque mount?
Can this affect gear changing? I have problem, when i change gears for example from 1 to 2 i hear a lot of noises from engine bay when i push clutch. Weird vibrations/rotating feel on gear stick tho.
Mine does the same. I think with all the wheel hop and RMM movement the inner CV joints are now loose and my steering wheel is slightly moving more during acceleration 🤷♂️.