Mid level ECU has just has a overhaul with more features, new design. 4 Injector channels4 Ignition channels (Smart coils or Igniters), Switchable 5v-12v4 HC Current output (Configurable, Default : Boost, VVT , Idle1 and 2)4 Low current outputs ULN2803 (paired for 1A) fuel pump, Tachometer output, Thermo fan, Spare7 Analogue inputs : TPS, O2, …