Buy Here: https://www.fabspeed.com/chevrolet-corvette-c8-valvetronic-maxflo-exhaust-system-2020/ In this video, we show how the stock NPP (performance valved exhaust) from Chevy works to change the sound of the C8 and how it limits flow. Contact Us Directly: Info@Fabspeed.com SUBSCRIBE at: https://www.youtube.com/FABSPEED%20MOTORSPORT?SUB_CONFIRMATION=1https://bit.ly/2QXPA5E Instagram: https://www.instagram.com/fabspeed_motorsport/?hl=en Facebook: https://www.facebook.com/fabspeedmotorsport/ Twitter: https://twitter.com/Fabspeed?ref_src=twsrc%5Egoogle%7Ctwcamp%5Eserp%7Ctwgr%5Eauthor Website: https://www.fabspeed.com/ Fabspeed Motorsport has been setting the industry standard for quality and performance since 1994 and we continue to revolutionize the Exotic Car Industry.