I bought my pfc from apexi(so no changes to the maps) and When we pulled it up on the datalogit and compares it to one bought a few month later I had a verison 2 and they had a version 5. the only difference was in the timing maps mostly 1 degree advance on the new version in the midrange under boost only. In the upper rpms under boost the new one pulled some timing but not across the board like the advance in the midrange. Just though it was interesting. I thought that the older ones had long been replaced on the shelves.

 

Oh ya we just up loaded the newer version to mine and the verison number changed on my commander. When I drove it around felt about the same to me. love the datalogic.