Originally Posted by NickP
Hey Mark - just as a quick note - many in the BMW FI world wind up going with a Porsche 993TT MAF. Its a Bosch unit that's 3.5" in diameter and similar wiring to the e36 units.
You're more than welcome to my car to tune for a couple weeks but its not an m20
I'd be interested to know how they interface it to the Motronic and if it's all done in software, as I would do it or if they use some type of signal modifying box. Do you have any idea? Call me up if you want to discuss it.