Hmmm... I dont know about the Teg. But my Prelude is never that ruff.
It vibrates a bit, but never enough to shake my manifold or muffler...and I got a solid front mount + rear mount insert. The higher the rpm, the less I feel it. I would say the most ruff part of the rpm range is around 700-1000rpm.







Sry, I am not sure of what would lessen the vibrations.