My Dougs D453 install

diymirage said

don't be too quick to remove the adapter, I run those headers on a 408 in a duster, with a 90 degree adapter on it
not sure what size filter I run, but it ain't tiny

(I can try to get some better pictures tomorrow)

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There ya go. Real world experience.
Funny thing is I just went back and looked at the installation instructions (mistake?) and in the disassembly it says to remove and replace it with a small filter. Then in assembly it says to loosen it and readjust it. WTF, lol.