If you own a 986, 987, 996 or 997, you could, unfortunately, be very familiar with this problem: black foam spewing from the air conditioning vents that eventually stops and leads to “window fog”. Now, thanks to Vision Vents, you don't need to drive under dangerous conditions any longer. The simplest and most cost-effective solution for window fog. Install Vision Vents in your Porsche - and get back to enjoying your drive! Use promo code: PCA2024FB for a 10% discount - Valid through April 19, 20