Eliminates the factory raspiness. Equal length equalizes the mismatch in lengths from the turbos to the back box hence the bends on the shorter pipe to ensure the length is equal. BMW actually does a similar design on the G8X series. Active Autowerke in the states has been doing similar as well. Powerpipes have perfected the F8x tone it's really next level and makes the car a completely different animal even feels a lot more freed upDon't think I have ever seen an exhaust design like that...very interesting...
The new headlights look incredible. Your Yas Marina had Adaptive LED?