It's only the front mount (attached to the crossmember), but it completely changes the character of the car. The engine's vibration is fairly noticible (which you may or may not like... I love it) and when you hit 4000-5000rpm it sounds furious.
![Twisted Evil :twisted:](./images/smilies/icon_twisted.gif)
Acceleration and engine braking is much smoother with virtually no bucking in any gear except 1st (which is much improved but not perfect). Everything seems much more intentional, eliminating the need to ease in and out of throttle positions.
And did I mention the sound?
![Very Happy :D](./images/smilies/icon_biggrin.gif)
I did have a little trouble installing it as it doesn't bolt right up on the K8 (maybe the klze?). It's too narrow, so I padded it with washers to reach the engine mount bracket. Took a couple tries to position it correctly. I also had to use a bigger bolt (1/2" iirc), which meant drilling out the bracket as well. Total install time was about an hour.
But all in all, a highly recommended upgrade.