Choose carefully the mounts, pitch stop, etc. you buy, because there can be a big difference between
each manufacturer/model when it comes to noise, vibration, harshness introduced. The stiffer each piece
is, the more NVH you'll add. That being said, I tried to read as many reviews on different pitch, tranny, motor
mounts before I purchased, and ended up getting all Group N stuff. They're considerably stiffer than factory,
but designed to be closer to the factory feel and noise levels than other steel and urethane constructions.
If my car was strictly driven on the track, I'd have put mounts in that are even stiffer than the Group N pieces
but I DD the car and appreciate some comfort and reasonable noise levels.