My experience is trial and error. Sometimes the local expensive stuff is exactly the same as the cheap foreign stuff .... but sometimes not.
I usually go with the cheap stuff first (on non-critical parts like this) and if it turns out to be junk then I haven't lost much money and can always go with the more expensive option later.
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1999 996 C2 - sold - bought back - sold for more
1997 Spec Boxster BSR #254
1979 911 SC
POC Licensed DE/TT Instructor
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