I just took delivery of my 720S and love the car -it's fabulous in every way except for the exhaust note. I have sport exhaust but the car doesn't have enough of an exhaust note for my liking. I get that some people like how it sounds and/or like it quieter but form me I'd like more of an aural signature. I hear the factory is working on a new louder exhaust that can presumably be retrofitted. I'm curious to learn which of the after market companies have done the best job on the 12C/650 cat-back exhaust systems. Looking for feedback on quality of product, quality of sound (not just loud), etc... Basically looking to see who to follow as the new options make it to market.