I am installing a si/so Magnaflow exhaust this weekend on my 2001 Silverado 5.3L. I intend to add a CAI. I have not decided which one yet. Any suggestions appreciated.

I am considering a diablo predator tuner because it sounds like I can make all adjustments myself. Will the predator turn off torque management? What can a custom tune do that a predator will not do?
Thanks