If you go this route, you should be prepared to have it dyno tuned. Building your own MAF tube can throw the maf readings off and cause you to run lean, stall and/or throw codes.
I don't know, if the pipe was same width as the factory MAF housing, it should be ok, unless I'm missing something?
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2005 Legend Lime V6 T5OD installed: eBay CAI, Trac-Lok, Xcal2, MRT Aeroturbine, Hawk HPS pads, various rice waiting: New wheels, J&M LCAs, Vogtland springs, Tokico HPs, CHE K-brace, rear sway,