Howdy peeps, I just purchased an 06 2500 duramax LT with the LBZ engine. I picked this thing from dealer with only 37k miles. It’s all stock for now😂, and looking for suggestions on and ideas for what, where to buy, and suggestions!

I. Air intake kit
Why is the K&N not for sale in C A?
Any other recommended brands and best place to buy.? I want this motor to breath,

II. Leveling kit and new shocks
Thinking bilstiens or reasonably priced lift kit? Shocks are showing signs of leaking and I’m thinking of throwing bigger tires

III. Side brush guards, new front grill, need nerf bars etc


any other must haves for my new beast?