these are 2 honeycomb style screens i got from www.SaxonPC.com in the 'Airflow Straighteners' section
even tho my MAF housing is a classified as 75mm, i know the inlet was bigger but i didn't measure so i ordered a 86mm and figured i could trim it to size. i went ahead and ordered a 75mm just because
http://www.saxonpc.com/100mm-cells-for-100.html 
