Neat. So how to do plan to tune it? Clamp MAP signal sent to the factory ECU then let the secondary system enrich above that?
I wanted to do something similar with my Subaru, and use an Aquamist 2D type injection. Batch mode should be fine.
2009 BMW 135i, 6 MT, M Sport, DIY DCI, Cobb AP, Apex 18x8.5+9.5, 235/265 Starspecs