Will this fit a 2000 model ?Some time in 2001, Toyota started equipping Spyders with a chin spoiler. If you don't have one, that's part of your problem. Without the spoiler, the car begins to wander at about 60mph.
The part number is 76851-17070.
I installed mine with some humongous plastic rivets ("clips" in Toyota parlance) I found at ACE Hardware. They have 3/8" shafts and 1" heads. I don't know what ACE calls them, but they're in the plastic fastener section.