the cone filter does not interact with any sensors, afaik. the part that actually bolts to the stock air-box, is square, and bolts to the airbox with 4 bolts. You need an adapter that bolts to the MAF unit, but has a round outlet rather than a square one. then the cone just goes onto the adapter's round outlet and is held on with a hose clamp. Be aware that a cone filter sitting there in your engine compartment is sucking in hot air, and may not even be an improvement over stock. 2 possible courses of action, that do have a positive result, you could buy or fab a sealed enclosure for the filter, then run a duct to a fresh air source under the bumper, behind the grill, etc. or you could keep the stock box, put a k&n performance filter in it, then run a duct (if your car does not have one) to the fresh air. I got one of the headlight panels that has a hole in it, and ran mine to there. I am not sure why some cars have this and some dont..my 91 318is does not have this panel, but my friends 92 e-30 convertible does. either way its an easy mod. I may even have an extra headlight panel if you need it
Geoff