RK Tunes Front Mount Intakes

[mcat2015M4]

Does anyone have experience installing RK Tunes front mount intakes on a 2015 S55? I have been battling MAF codes since installing the intakes. Smoke tested both intakes, no leaks. Just curious what others have experienced.

This thread https://f80.bimmerpost.com/forums/sh....php?t=2099493 outlines the mods on the car and the codes I'm dealing with.

[M3SQRD]

It’s not just the RK Tunes intake. The problem is the MAF is calibrated based on the cross-sectional area of the stock tube. If the area at the MAF steps down (decreased area, increased velocity) or steps up (increased area, decreased velocity) the MAF detects the area differences during a cold start. It can affect cold start idle and it will feel like it’s about to stall if you drive off too soon. I have an Eventuri CF V2 intake and, when I start it, I don’t touch the throttle and wait at a minimum 30 sec before giving it gas to pull out of the garage.

[mcat2015M4]

M3SQRD with your startup process do you still get CEL/MAF codes? I've gone days with no codes and then all of the sudden they pop up. What you describe absolutely makes sense in terms of total air volume. I just don't know what my next step is? Especially if I want to stay with the large RK Tunes front mount intakes.