Like most folks, money is super tight right now. First on the list is replacing the missing remote key fob and floor mats. Next will come K&N cold air intake/filter and then probably chip and cat backs. Headers will have to wait a while, but eventually.
There's a few bugs in the system that need to be ironed out, like slightly rough idle, what sounds like a loose heat shield or other exhaust piece, intermittant starting problem (has to be put in neutral sometimes) and probably a tune-up. But then the sky's the limit! I like what some people are saying about big sway bars.