[Bmw doubles]

Originally Posted by Unspec

Assuming there's no obstructions. You could get rid of the U section by just chopping the turbo elbow really short, use a short-ish section of plastic piping the same diameter as the OEM intake, and then connect all of it using silicone couplings. Stick the sensors on the plastic part and you're done.

I wonder if you could stick some rubber molding on the end of that heat shield to seal it up kind of tight against the plastic areas to form a pseduo air box.

If I attempt to do the version 2 I have to extend the fuel vent from a 3/4th fuel line to a 1/2 NPT or something similar. I'm not sure yet what the crankcase valve tubing size would be. For now, in this version 1, I don't have to modify any stock hardware and this includes possibly the MAF wiring too. Waiting for some adaptors to arrive.

If I did a stage 2 of this I would modify the inlet and go from a 2.5 to a 3" flaring out the input of the inlet. Additionally chopping the U section and making a true Ram/Cai.

As far as a airbox/plenum goes there's no room for that by the grill and i don't know enough about the science behind a proper plenum. I guess its time to start googling

Though on the thought process of a plenum I briefly thought the U Shaped connector kinda acted as my airbox. The elbow and the VW piece goes from 3" to 3.5 and then at the inlet it's 2.5.

So I figured maybe there's a always a little reserve air stored in that section 🤷🏻