300 Touring Signature Series 3.5L

I was going to get a truck when i come home from BMT, Then I was going to get a 240SX and "hook it up", But i decided id rather have a luxury car. I went to a dealer and i was able to get them down to 29,000 (Fully Loaded w/ Navigation and Rear Seat Entertainment) Now my question is. Do they make any performance parts IE CAI and Exhaust for these engines? I might not put anything in it i was just curious. Im getting it in Black, Tinting windows as dark as legally possible, and getting Black Rims. (Night Rider) Any help would be appreciated.

there are cat back dual exhaust, perfomance chips, and intake so far. check out 300cforums.com and lxforums.com