technique tuning reprogrammed the ms43 dme to use one o2 sensor and use a completely different maf that is blown-through, sits just about 12" in front of the throttle body. This is all on stock wiring with a technique tuning maf adapter harness. My rat's nest is due to boost control and other aftermarket sensors.
Some information I found about this car www.germanboost.com/showthread.php?5667-Custom-built-motor-E46-330-M54-turbo-completed-and-tuned-by-Nick-G-414-whp-at-10-5-psi