yeah... if you don't like the vibrations, the MSP not really made for you, hahah
i mean i guess they will be minimal if you keep it somewhat stock, but the more you upgrade the more vibrations you will get.
i've owned three MSPs to this point,
mine = highly upgraded and a vibration machine.
titanium that was partially done up w/ bolt ons and exhaust = vibration machine
black one that was almost stock besides an intake and it wasn't on the same level as the other two, but was far from a smooth/vibration free cabin.
drive a MS3 and you will feel the difference. i've actually been thinking about taking my whole interior apart and applying sound deadening to the floors/door panels to help tone it down a notch.