I think maybe the driver forgot kot.
Anyway, currently I do have a TT on my 4WD turbo car as well as my NA Vtec car.
My overall opinion is..if u really a kind of highspeeding on NA car especially, TT is really usable to warm-down your engine, clutch after that.
Why ?. I did experienced a clutch jam after highspeeding running on my NA once..before the install the TT. Stopped the car by roadside, break the car for 5 minutes then it's ok again!. Post TT installed, no more such probems.1