Clayton, I talked to one of the knowledgeable and friendly people at ATS. I originally called for something other than the trans stuff, but we did discuss them. I asked him if doing the VB first and later adding the TC was doable. He said the Stock TC would benefit from higher line pressure, although the VB would have to be specially built. When it comes time to install the TC, he said they would tell me which ports to open and which ones to close to bring the pressures up to where they need to be for the ATS TC. If you are mechanically adept, swapping the VB is easy enough. From what the Gentleman said, modifying the VB was extremely simple. I do want to put a TST PMCR box on my truck, but I full well realize I need to upgrade the TC, VB and add their Commander to make the Trans live. I will probably wait and do all three at once. Also thinking of either using the ATS exhaust manafold or building a Stainless header. Not sure if the time invested in building a header is worth $600 that I can spend for the ATS man.