now i know everyone is gonna say black bear but here is my dilemma. i live in hawaii so the chances of them coming out here are slim to none. my yukon doesnt really have much modding done just exhaust intake and headers but am looking to get a good tuner to maybe see if i can squeek out a few more horses and mpg as well as better shifting. since bb is more of a hands on thing which should i use maybe diablo?