IIRC ProSource may still have some of both types in the OEM Sekkurit (??) that they carry, which they can ship to SoCal - tinted (no band) & non-tinted.
If you can't get it ProSource, try the closest Porsche Dealer - Desert, Walters/Riverside or whatever you prefer (you may want to go online to Sunset Porsche OR to get a quote with shipping from OR for bargaining power).
The P-dealers still sell them, just specify the clear or tinted flavor, since the OE ones never have the shade band, only aftermarket.
IIRC it's those cheaper Chinese XYZ aftermarket ones that are sold with the shade bands (back in the day PPG & some others also sold shade band type, which you'll see on older 914s like mine!).
Good Luck!
Tom
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