OEM Windshield replacement for Cayenne
 

Finally, I found the shop Hi-Tech Auto Glass in Redwood City from member of 911 forum

. Doug and Nick from Hitech worked on my Porsche today to replace the windshield with OEM. Their price is Best, and I am very pleased with their workmanship - Outstanding 1 hrs. Their yelp rating is perfect. Good place to go for Porsche windshield replacement in the bay area. Apparently, they do work for Porsche, MB, Volvo and BMW dealers. All of Porsche dealers in the bay quote me a Crazy price $2k. Except Porsche Steven Creeks refers to golden state auto glass, their price is $1k+. Yelp rating is not quite as good as Hitech, and Hitech quotes the lowest price.