Diesel Bombers - Chip air intake and exhaust upgrades

Hey guys I am looking to put some upgrades on my 08' 250 it is currently stock.

What advice and prices can you give me on chips exhaust and intakes, with and without the DPF/CAT delete kits. What do you recommend? I want the added performance and extra HP along with the better fuel mileage but I dont need anything too extreme. I dont want to get into transmission and torque converter upgrades.

I have heard alot about the SCT liverwire and the scorpion chips are these pretty good and what will they cost me with the exhaust?

I also would like to install a leveling kit I am thinking 2.5" up front and 2' in the back can you price these as well?

Thank you in advance for the help and information.