There are supercars and then there’s the Pagani Huayra. The beastly Huayra has a massive 6.0-liter twin-turbo V12 that produces 720 hp and an ungodly sound. In the video below, Marchettino claims to have a video of Pagani testing a titanium exhaust system on a Huayra. Does the stock exhaust system or titanium exhaust system sound better? We think they both sound similar, which is amazing.