• Only 911 kits are available, making this kit an exclusive product. The speaker drivers are engraved with a serial number on their surround and a hand-stamped and unscrewable aluminium plate certifies the 911 kits. To ensure you receive an experience that goes beyond audio performance, the kit comes in sophisticated and convenient “signature packaging”. * Porsche Panamera (971 / 2017 – up), Porsche Cayenne (PO536 / 2018 – up), Porsche Taycan (2020 – up)