Replaced the alternator.
That's about it.
It's a good car, but runs really hot. It's pretty fast. Has a 16.0sec 1/4 mile. The transmission is really rough though and I don't like it. I changed to a 160 degree thermostat and a chip and now it seems to run right. Otherwise it runs at a 197 degrees and when it warms up it loses power a little.
If you want a car with some nuts, but aren't into racing, get it, but if you are into racing then I suggest you either get a 2000 Z24 or a 91 Eagle Talon TSI. Just don't buy a HONDA, everyone and their mother has one.
I found that my Cavalier has a lot of power (when the car has been lightened). It is a 1991 3.1 5-spd and I can race it all day long and beat cars with the names of Mustang, Camaro and other muscle cars. I feel this car has a lot of hidden potential that you just have to find out for your self.
I ran a 13.21 on the 1/4 mile, and I was happy.