Description OEM Porsche Burmester (round) tweeters. Made in Italy. Can be used as a drop in retrofit upgrade for stock Base (Sound Package Plus) or BOSE tweeters (front and rear locations). Sold as a pair. OEM Porsche (VW Group) Part Number: Gen 1: 7PP-035-412-A Gen 2: 971-035-412 Note: Gen 1 and Gen 2 tweeters can be used interchangeably.