Now adding an exhaust...What should I get

intake you could do a drop in air filter and the deck plate mod since you have a 1st gen

 

Dynomax super turbo or i have herd good things about the dynomax ultra flow.

Do the deck plate mod for a cold air intake and throw in an afe pro dry s filter!
The deck plate will cost you under 15 bucks to install, and you will get the same gains as a CAI and save $200 bucks!

 

What exactly does the deck plate mod do? And are there any advantages to getting the CAI?

 

the deck plate mod is essentially a CAI! You will notice get the same gains and save $$$. If you search around everyone with 1st gens have one.

The nice thing about deck plate mod is that you can leave it open or close it if you are in mud water or wheeling where its dusty.

with all the $$$ u will save doin the deck plate you can do other mods.

do the gray wire mod too, and best of all IT'S FREE!!!
it allows you to use the locker in any gear. Stock only allows you to use the locker in 4L