^^ I don’t think there is a difference between the SS and titanium setup sound wise, the only benefit of the titanium exhaust is its weight, since it is a lighter material.

If you are after the deep sound, you should get the whole system (axleback+midpipe). It deletes the secondary cats and has no resonators, but it will be VERY loud, that video makes no justice how loud it is.
Maybe you heared an axle-back setup before, without the midpipe, that could be the reason why you were suprised by that video.

I ordered the Meisterschaft valve controlled axle-back part for my GSF last week, but I will keep my stock midpipe, because I am aware of the loudness + the Lexus dealer told me the midpipe voids the warranty