Realized I hadn't posted this before but it belongs in the preservation thread:
The previous owner of my car had some questionable tastes - painting the shifter bezel and speaker grilles blue for some reason - but he also did something I've never seen: he had the stock seats reupholstered in stock cloth.
Those are 320,000 mile seats. But only maybe 20k on the new cloth. They're way comfier than any S13 stock seats I've sat in too so whoever did the work got the foam just right.