No mention of it in the FSM. It's a solid bar and hangs off the lower rad support by plastic brackets and is suspended by what look like mini motor mounts. This is on my 93.5 P10, but my other P10's had it too.
Originally Posted by freakflier It is a "Mass Damper". They are added to improve passenger comfort, absorb engine vibrations, harmonic vibrations from suspension input, etc.
Interesting, thanks. I wonder how much it weighs and if I'd notice a difference inside the car with it removed?
I removed mine. It is just for NVH (noise, vibration, harshness) in the frame. Plus I have some Garrettsville, Ohio stuck up in that piece. Thankfully it was nice and moist that day.