Yeah it was a 50mm full system as standard. I never fitted them so can't say about noise. It had carbon race cans when i bought it which stayed on until selling the complete exhaust.
All the ends cans I have for a variety of 916/748/996 systems have a pipe welded to the end can and do not look like the picture in your link. Andy
They are not Termignoni's they just have the sticker on them. All Termignoni's for the 748-9** model have the rear section pipes welded on and fit straight on to the link pipe. Those silencers are some other make.
Credit to the seller of these cans, he has posted on e-bay that they might not be Termi's and wants to sell in good faith due to the thread doubting the make on Ducati Forum. Steve
He also has these for sale, they are from a SP1 but may be useful to somebody making a special? Trak Pro Series V | eBay