Just seeing what people are recommeding for CAI kits for these motors, or should i just get a K&N Filter?

Also are there any CatBack systems for them?

 

Yes, K&N is a great filter for the GAS engines (turbo diesels have issues and I'll let those 'smokers' explain)

Regarding exhaust - yes, they are out there. Browse and search the site ...they have a few good options

http://www.gibsonexhaust.com/wheretobuy.html