This sits on the side of the intake hose correct. #2 in the picture. It bolts to the side of the block. What is in that part that bolts to the side of the block?
I'm trying to figure out what this hose is or does. It appears to be vacuum only. It is #2 in the diagram and connected from the intake pipe to the side of the block.
BMW has a valve that opens when under boost only to return crankcase pressure back to intake at least on the n55
In high boost where the smaller turbo tends to fall out of efficiency water/meth will help control the intake temps. I advise against running anything but 50/50 meth/water due to preignition issues. But have only ran 1 water/method setup.
The wear sensor is on the drivers side only. I removed mine from the calipers and just tied it up with zip ties. I don't wanna buy an expensive sensor. And I've read they can melt/break.
Just ordered a set of these for the fronts. They were $40 shipped. Had good luck with ceramics in the past. Even if they keep the nasty brake duat down I'd be happy. Ceramics tend to stay cooler than organics too