I was looking for intake and exhaust systems or anything to get more HP's and also that deep exhaust sound out of it. Anyone have any ideas?

First is it a 4 or 6 cyl?

it's a 6 cyl. 2.4 liter automatic

Hate to burst your bubble, but that isn't a 6. It's a 4 banger.

Well if its 2.4L it is a 4 banger like mine. Heres a site with tons of aftermarket parts for the 2.4L http://upgrades.aleromod.com/24_dohc_performance.htm