I just removed a m30 2.5 liter euro engine from a Euro E28 with a L-jetronic fuel injection system. I was told that this makes a nice upgrade to the E9 and am taking offers on the FI system, harness, ECU, sensors, injectors, intake. This system does not require the O2 sensor. The head is also for sale, it is the same head as the 2.8 liter M30 engine.