Here in Hong Kong, the C43 AMG usually doesn’t come with the U78 Performance Exhaust from the factory. But no worries — we can upgrade it!
You’ll get a button inside the cabin to open or close the exhaust valves whenever you want.
Check out the sound clip below — trust me, it’s a whole different animal with the valves open.
Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.
