How do you convert to an SD tune on an 01 Z06? I know you'll need a 2 bar MAP. Anything else needed and where can I find the 2bar SD OS? Will the 01's PCM support the SD OS? I want to start some small N/A tuning now and later (few months) go boost. I want to make sure I have the same PCM so I don't need to license a third time (I know it would be once for the inital read and once for the new OS) Also gives me time to get familiar with everything on the LS6's PCM.