Yeah. PM me for the address, etc.
As for the older unit that uses the LSU4.2, I think that would be an AEM 30-4100? If so, that is a completely different piece that has no CAN interface. The re-flash only works for the X-series devices: 30-0300, 30-0310, 30-0333 and 30-0334. It PROBABLY would work for the 30-0350 pro dual units. But, that has never been tested.