Depending on the KdFi board, there are 1-2-3-4-6 or 12 High Power IGBT ignition outputs.

They are operated by the MS2 processor and ground operated.

• Passive coils(dumb coils) can be directly connected to the KdFi, good grounds are required!
  

• Smart coils(dis coils) can also be operated by the KdFi,however additional hardware or board mods are necessary depending on user requirements.
  

-Option 1 hard: board adjustments IGBT removal and bridging IGBT pads (gate to source)

-Option 2 easy: additional pull-up board available in 2 versions.

https://www.kperformance.be/KdFi-ECU/PULL-UP

These boards are a direct fit on the original basis KdFi boards an very easy to use and instal. 

The Motronic basis has all the needed pull-ups onboard and can be activated by an easy solder jumper.