I will be getting a new MAF eventually. Yes.... this setup will shorten the life-span of the MAF, but I have not heard of anyone killing their MAF with this setup yet. For right now, this one is working and my car is running better.
I just bought a 2" coupler at Lowes. It's ID is a bit small, but I am going to bore some of it out since it is thick. I will throw it in the oven to soften it up, and get it on the pipe. This way my heavy IC -> TB pipe won't be prone to pop out of the bottom of the MAF.
Good luck with the business Jeffmsp, I read through that thread.
I will take pictures of the final setup and post. The filter extension should be pretty cool. Ok time to get working!