I'm looking into getting a sway bar. Which is better to get, front or rear? What are the pros and cons of getting either one first?

 

Rear swaybars are a great bang-for-the-buck mod, in terms of handling. There's a few caveats to buying them, but a little research will turn up some solid products for your application. Not sure if you've got a front swaybar, but if you do, I don't think it'd be worth upgrading as it would only pronounce understeer.