Sorry, I assumed we were looking for a way to connect directly into the ECU for reflashing the maps. Piggy Backs are available from GReddy, Apexi and AEM easily enough. The first couple of attempts tuning one to one of these Crossfires should be done in collaboration with a local speedshop & dyno testing. Once some base lines are established, it would be rather easy to pass that file around among your crew here and make the tweaks necessary for each car, especially if you're running the AFR set up HDDD describes above."...You will need a piggyback system to adjust AFR and Timing independent of the OEM ECU/PCM"