Echo this for a 2nd opinion. The only mount that really adds vibration when driving is the upper engine insert. The Upper engine stabilizer, lower engine mount and gearbox mount are all spot on. As Pav said, the only vibration is when pulling off - this maybe a little annoying if you spend all your time crawling in traffic, but as soon as the clutch is all the way up or you're moving - vibration isn't noticeable.