There was a thread that I can't seem to locate now, about replacing the stock air box with a behind-the-intercooler "cone" filter and an adapter on the AFM. I had mentioned that I once used a setup that deleted the air box AND the J-boot, in favor of an MAF style intake routing. I think it was cold-running 924 that requested a pic of the setup. There is no pic of it while it was on the car, but Igrabbed as many pieces of it as I could find, and put it back together for a pic that I took today. Here it is:
What is not visible in the pic is the 2 holes in the AFM-to-turbocharger rubber coupler (formerly a charge-pipe-to-throttle-body coupler). The holes were for the various (4, I thinK) small-diameter hoses that feed into the intake. I used 2 T's to reduce the # down to 2, from 4. This was the most difficult, ugly, and problematic part of the setup, as these 2 connections stuck down into the intake a mere inches away from the compressor wheel. I also had to flatten the charge pipe somewhat, for the AFM to fit under it. All of the issues I had with this setup were due, in fact, to space/fit issues. This setup might be feasible if the small diameter hose issues could be properly addressed. I do recall sweating 2 1/2" copper street elbows together at close to 180 degrees, to get one of the hose angles right. Like I said, it was tight, and ugly. But it did work.