BMW OEM Bowers & Wilkins Tweeter with resistor in OEM box. I have Qty.3, $90/each or $225 shipped for all three (3). These list for $117.72+ new plus shipping. I bought these new for my B&W retrofit project in my E70 X5M, however decided to go with custom crossovers instead and the non-diamond B&W tweeters without resistors. FWIW, they are plug and play into the E70 platform, at least with S752A individual audio option. However, these are nominally used in the G05, G06, and G07 X-Series vehicles. The B&W's have an exceptional clarity. These are NOT diamond B&W tweeters.
Thanks for looking.