This is the OEM brace that goes on a 92 Coupe Quattro (or something like that). This is how I installed it on my 1989 90 Quattro.
This bar also fits the earlier, type 85 (4000/Coupe) cars as well. I used a Jamex bar on my Coupe.
Finally, finished and capped. You will note that the two battery wires are "just long enough" to make it to their home neatly.
A view of the neglected drivers side bracket shows the tight clearances for the cruise control pump.
Dave and I discussed how much impact this bar might have while installing it, and I agree with his opinion that it might not be very necessary. On this car, the towers are solidly attached to the firewall, which is a great big piece of steel keeping them aligned. It may also be a factor that these cars seem to stay "solid" longer than the type 85, making this improvement less noticeable. It certainly did not make the radical changes in steering response and feel that were so noticeable, on my Coupe and Brendan's 4000 Quattro.
But it was fun to install, inexpensive, cool looking, and provides a useful place to rest my hand when leaning over the engine compartment.