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How you holding the filter in place? Got some pics?
The cutout idea is not mine, I picked it off one of JBrady's earlier posts...
I can post pics but Pure is right, I am running the Lexkost mod. I have to say it is ingeniously simple. I can't say if I get more power but I like the way it sounds and my MPG didn't suffer. Seems like the JBrady mod could be better because rather than the filter being out in the open (without heat shield), yours is at least somewhat shielded.