I have an LS1 that I have a canned diablosport tune on, I'm assuming it's now locked. I've seen some tutorials for unlocking it so I follow those. All I want to do is shut off the MIL for my post cat 02 sensors since I've cut out the cats, and next year I'll want to shut off the exhaust gas return. I've been using tuner pro for years with my bike and have downloaded some XDF files and patches but won't know for sure until I actually get connected which ones I'll have to use. the connection sequence seams aot different then I'm used to. I have just down loaded pcmhammer, will the OBDLINK Sx USB cable be sufficient to read and write to my pcm after I make the modifications in tuner pro? Any and all helpful advice would be appreciated.