[spidertri]

I have read that the JTD underpanel is not as sturdy as the motion motorsport one because the JTD attaches to the crappy plastic that is already there. So if you're like every other E36 owner, that plastic is mangled and broken. The motion motorsport mounts to the frame of the car I believe.

Is your car lowered at all? Plenty of people just take the stock underpanel off and run nothing when it breaks. I would say if you are significantly lowered you might want one to protect your oil pan, but you could get a x-brace to do the same thing.