for starts i would get a jet kit, k&n, exhaust, clutch kit, and even a lift kit. i had all of this stuff on my old rubicon and it ripped! if you are interested i have my clutch kit and my custom 1.5 lift for sale off of my rubicon i will sell to you for $75.00. also if you are interested in the other stuff, you might want to give ebay a try for good prices.
-Aaron
-Aaron