I have an '08 GMC VMax. I'm looking to add a little power and better my mpg. I figure the most bang for my buck initially would be a programmer and a CAI. I'm looking at the Diablo (predator or Trinity) but I've also looked at Hypertech and Superchips. Also looking at the K&N FPIK, mostly because I found one for $200 brand new. I've heard that all CAI's are pretty much the same though... Thoughts, suggestions? PS, new to the site. This place is awesome.