Full circle, been driving with the Neuspeed insert for the last five days and like it very much for my use.
While the 034 was quiet at idle, as soon as you applied some power/torque you could hear additional engine noise and especially added gearbox and turbo whine. At first I kinda liked it but then grew weary from it as that little tab literally catches on to the outside of the bushing from a certain load, and at every time pulling away. This point of engagement changed as the insert had bent, to a higher load. Either way I started to dislike it especially during daily driving, the stepped increase in noise gave me the idea that I was 'forcing' the engine, not a robust feeling.
With being under the car five times already and coming to understand the geometry and forces at work, I decided the Neuspeed insert was worth a try. It is one of the softest and unlike most, it has a little bridge between the two long protruding 'teeth', quite alike the little front tab of the 034 insert.
Review of the countless
reviews revealed that the only complaint most had was added NVH in reverse and from the AC. It fitted my version 2 mount (using silicon grease) and I did notice that reverse vibration and decided to modify the insert by cutting away some of the large area on the rear side, which improved things.
Now basically, its presence is not heard at all, no added noise, harshness and the little extra vibration when pulling away is easily mitigated by just adding a little more throttle. Under load there is no added noise noticeable, or at least much much less then the 034, much to my liking. Now I can still accelerate rather briskly yet effortlessly whithout passengers asking where that airplane flying over is.
When provoked in the wet or dry, I can still can get the wheel hop but maybe at a fourth of the intensity, I never got near the feeling that now something is going to break as it did before.
Basically it works well to make the whole mount more solid and less flexible, but still let it do it's work in filtering out NVH very well.
Old 034 and just tested whole and greased Neuspeed
P.S: there is a YouTube
review of the Neuspeed, the guy claims it was burnt and the bottom plate bent, but he doesn't understand what he's talking about. The black isn't burn but the rubber of the mount that colours the insert, the even spread actually shows how well forces are spread over a large area instead of on a little metal tab. The slightly bent and thin plate keeps the insert in place without causing interference due to the bushing movement as it purposefully is allowed to be bend away a little.