This time I have filmed a bright yellow Porsche 991 Turbo S from Qatar driving around on Sloane Street, London. The exhaust sound from this 911 Turbo S is far from stock. It's equipped with a loud catless downpipes exhaust system. If anyone have more information about the exhaust system, please let me know!Follow me:1st Channel: http://www.YouTube.com/GUMBAL2nd Channel: http://www.YouTube.com/GUMBALTV3rd Channel: http://www.YouTube.com/CarChannelClassicFACEBOOK: http://www.fb.com/GUMBALTVINSTAGRAM: http://www.instagram.com/GUMBALTVTWITTER: http://Twitter.com/GUMBALTVhttp://www.gumbal.tvThanks you for watching my videos. All feedback on my videos are appreciated! Don't forget to like the video and subscribe to my channel. More videos coming up!- Hans