Because of the cost of new MAF, this DIY is not worth the risk/time.
Relates back to the old quote, "If it's not broken, fix it 'till it is."
2007 e92 328i - 6MT/ iDrive/ Jet Black/ BlackLthr/ Style 197/ M3 Spoiler/ Intake scoops
Charcoal Delete/ BMW Prfmce Interior/ GPT 7500k's/ Black Grills/ Hardwired Radar
/ Mtec LED /Refector Delete /30%Tint/18mmRear/ WthrTech