EMPI Rabbit shifter:

Just got done installing the EMPI Rabbit Shifter in dad's Rabbit ('84 Diesel L with 4-speed manual) along with an upgraded Delrin shift rod bushing (
http://www.vwdiesel.net/phpBB/viewtopic.php?t=27 ), and he is raving about the new setup! I haven't test driven it yet, but sitting in the car, was pretty pleased with how easy it was to grab any gear when sitting still.
Benefits:
The friction and play so common with A1 VW shift linkage was much reduced, and the shift motion of the EMPI shifter was nice and solid going into and out of gears and the throws were noticeably shorter which was also nice. There was also a pleasing solid feel when pressing the lever to the left into the 1st-2nd gear tracks, when the EMPI shifter hit the solid reverse lock pin. It gave the feel of very solid construction vs the non-solid feel of the flimsy stock reverse lock-out sheetmetal parts. Also, engaging the reverse lock-out by pulling up on the ring under the shift handle also was pleasing to do and easier than the stock motion of pressing the handle down to engage reverse. In short: it was a joy to use the EMPI shifter. Nothing but improvements.
The short shift design that is built-in to the EMPI shifter is of better design and function than any competing aftermarket offerings I have tried or seen. Unlike other short shifter designs that multiply lever ratios that are right near the transmission, reducing inertia of the shift linkage (making the shifter feel "notchy" and driving a need for adding weights back on) as well as multiplying slop in the bushings and increasing the stress on the bushings (making the shifter feel sloppy and/or wear that way more quickly), the EMPI short shifter makes the shift about 30% shorter front to back and side to side while keeping all the stock movement and inertia of the shift linkage, and not increasing slop or the stresses on the bushings.
The product came complete in a blister-pack and all the parts needed for install, although it would have been nice to have new OEM bushings to replace old worn-out ones at the bottom of the shift lever behind the under-car shift boot. I don't like re-using old worn out bushings, and it sucks to make a run to the dealer for 20 cents worth of parts. (On a side note, some tips I discovered during installation of these that helps reduce unwanted slop and friction: wrap the OD in teflon tape to make them fit tighter and file the sides of them to fit reducing friction.)
The included installation instructions were good - 3 pages of straightforward step by step process to install, with a couple of easy to understand diagrams including a helpful exploded view showing how all the parts should fit together.
Criticisms:
The main thing I don't like about the EMPI shifter was that it was not designed to accomodate the under-car shift boot at all. At one point the instructions say "attach the boot with sheetmetal screws to the underside of the car" - yeah, right - the boot is not designed to be held on by sheetmetal screws and neither is the underbody designed to be drilled and tapped to accomodate them. I feel that this was a total cop-out by the product designers. Since I had to get the car back up and running, I ended up just omitting the under car shift boot, but have been giving some thought as to how to go back and re-doing it to properly install the stock under-car shifter boot. At the same time, I wonder how much of the reduced friction I noticed after installing the EMPI shifter is due to the shift boot not being there.
Another nit I have to pick is that the threads on the shift ball were not the stock specifications, and so none of the stock VW shift handles will screw on. The included large "ball" had a nice feel in the hand and has sort of a simple retro look, but it lacked the shift pattern on the top of it that all stock shifter have on them. However, there are probably a range of some other aftermarket shift balls (Hurst, or EMPI's?) that would match this thread pattern. Also, the shaft of the shift rod was much larger than the original shift rod, so the original shift boot would not fit over it without being modified to make it's hole bigger.
Conclusion:
Anyway, overall I am very impressed with the EMPI Rabbit shifter, and plan on getting another for my Rabbit GTD autocrosser. From what I know after installing, it, I think it should work fine with a 5-speed shifter too. There is a precision measurement you set under the car to set the side to side throw between 3rd-4th and 1st-2nd gear tracks, similar to how you set the stock side to side position of the shifter, except the measurement is different and is done with feeler gauges. The instructions only list the thickness required to properly set the side to side throw for a 4-speed, but I think it could be set up for a 5-speed as well if you determined the correct thickness of this measurement.