So a previous owner of the ‘stang chose to fit a Spectre intake to the thing, no problem, but judging by the condition of the filter it was a few years ago, and much of the rubber around the filter neck had perished - so I replaced it at the first chance I got.
When I took it off, it was much worse than I initially thought, especially on the underside of the filter.
Anyway. Luckily, a quick inspection of the intake pipe showed no signs that it had eaten filter material, so I slapped the new shiny filter on there and she’s good to go!
I eventually want to replace the intake with a Ford Racing kit & a tune, or at least one with a better heat shield, when funds allow.