View attachment 372136 I vote max flow..they both breathe well but on the stihl saws without " air injection " the filters pack so fast its almost a joke..depends on your use ..i know the HD2s supposedly still breathe well when they start packin up i personally just dont care for it....weather permitting i run the max flow without the cover anyway , function or fashion ? ..your choice
Did a dyno run a while back on it and the hd2 performed just like the max flow. I fully agree that the max flow can run longer before cleaning. The pleats on the hd2 filters plug up quickly. I recently started running outerwears prefilters over top of my hd2's and I love that set up. The outerwears are slick and sawdust dose not stick to them. The sawdust will not collect on the outerwears giving it a much longer service life.
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