Upgrading my Porsche 981 Cayman 2.7 with the Porsche Aero Upgrade kit. I purchased this kit for $565 dollars from Suncoast Porsche Parts online. I entered my model being Cayman Base 2014-2016 and then selected category Aerokit & Spoilers and next selected Center Duct Upgrade. I arranged for a racing company to install the kit. When the kit arrived it looked better than the pictures suggested and has a grooved appearance. Also it would appear it’s available for the base and S models.