If you want a period-nostalgic (from the '50's) filter that actually works very well AND looks similar (but not the same as) the original Porsche one, you might consider a Frantz filter (www.wefilterit.com).
I've mentioned these before, but my Dad had them installed on a large fleet of school busses for years when I was a kid and they were terrific. Plus, the fiter element is a roll of toilet paper (honest!). After installing them, we went to periodic oil analysis (cheap at a local truck stop) to measure viscosity and acid build-up and stretched oil change intervals to 12,000 miles on dino oil, by changing the filter element every 3000 miles.
They paid for themselves in a couple of years (we kept busses for 4 years, then traded) and in the one engine tear-down we did (driver over-revved it and broke a rod - then we fired him) the engine was amazingly sludge-free at 140,000 miles and rod bearing wear was less than half of what we expected when we plastigauged them. and remember, 95% of school bus driving is stop and go.
Been thinking of getting one to replace my spin-on WIX filter.
