Porsche Sport Exhaust, also known as PSE. Factory exhaust upgrades designed to thrill. A dynamic exhaust system which changes tone based on your foot. Drive hard and the exhaust will be loud and aggressive, drive soft to get a civilized and quiet tone. Or press the exhaust/Sport button to switch to have aggressive exhaust sound all of the time. You get the best of both worlds with PSE, ideal if you don't want to annoy your neighbors. Choose your system by model and generation. We also have many aftermarket alternatives available. To see more options, click on the Parts & Accessories button above, select your model and look for the Exhaust or Performance category.