That's my system, I had them on my 1199. They are Decated and also have some internal tubing removed. The sound is different to standard and there is also a very slight weight advantage (couple of lb). I was not really interested in making something that makes my ears bleed, I was more interest in better flow and the cats don't have restrict. I now have a 1299 system on my 1199 but de catting that is not as easy. No unless I found a mega cheap set of Termi's I think its a lot of money for not a lot Shameless link.. Ducati Panigale 1199 899 full exhaust **DECAT** | eBay
With a little extra added random snap crack and pop, the quick shifter pop is more noticeable.. Which is always good. Id describe the sound as a little more angry, removing the cats is bound to make a difference if you have ever seen one they are quite dense. CAT is tw*t to get out
I had stock on my 899 up until first service then termis fitted. I noticed the difference straight away. Smoother at the bottom end and a much improved throttle response in race mode. Definitely an improvement. Noise just a bit deeper. I wouldn't have paid £1600 for them though.