I've been running my 04 X at the local autocross events a few times, the car handles fairly well for what it is (it does like to plow a bit though, I'm thinking about trying to adjust the camber a bit more negative all around, any input is appreciated).

I also am considering an intake/exhaust upgrade from mina gallery/borla/whoever, and possibly get some H&R sport springs and a bit fancier with the brakes(probably just drilled/slotted rotors on front, anyone know any adverse effects of using just front perf. rotors?)

I've been researching all types of recommended maintenance to try and keep my X in top shape, I have read everywhere about the TC being the biggest concern, I was wondering if anyone had come up with a fix to strengthen the case to put up with more aggressive driving (or if autocross is too much for the car, even though you only go wide-open a couple times per run for a few seconds at a time)?

Also, like I said, any input on the other topics I've mentioned would be greatly appreciated.

Thanks!