Where should I start on a 09 GMC Denali?

[09yukon]

I just purchased a 09 Denali. I hope to make it to the Black Bear tune near me in a couple of weeks. I have been looking at exhaust CAI etc. Most everywhere I look dosn't have anything for the 6.2's. Where would be a good place to start to get the best HP? I don't want to buy a bunch of stuff only to have to pull it off later because it won't work with something else.

 

[xX Mavr1ck Xx]

wrong section dude. lol