Thanks for reading and for the compliment!
If you are likely to park your Boxster facing South-West on a daily basis then the trick is to use "Satin Black" instead of a pure flat black paint. The satin black will reflect 50% of the light. Use a quality high temp paint and your headlights will be just fine. VHT does a very nice satin black, looks very modern e.g. 90% black, 10% grayish.
This is a subject that was discussed here on the Chinese retrofitting forum here and everyone told me I was full of BS for saying that flat black wouldn't work under the hot sun (they are maybe right, what do I know!). Hundreds have done it on their other cars and never got a hot spot/burn years after their retrofit. Like you guys we also do get these (hell-like) burning sun days here in Shanghai.
Their reasoning is; if you use the VHT(-like) quality high temp paint e.g. the same they paint headers with, then all should be well protected under there.
Hope this helps a bit mate
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'97 Boxster base model 2.5L, Guards Red/Tan leather, with a new but old Alpine am/fm radio.
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