Ok. Here it is from the right.
It comes with silencer inserts if you order them, though I am not sure how much silencing they actually do 😂 It's LOUD with them fitted.
You also have to drill a hole in the tail-pipe to fit them, which needs very sharp drills, stainless is hard.
So. Changes. As the cat is now gone it smells a lot on start up from cold. No cat to soak up the excess fuel, for later burning off. Old-school 1980's car rich on choke fuel stinky.
It pops on over-run, lots when still on cold engine mixture.
Where I work I have to pull out of work into heavy traffic going 50mph+, so it's often full throttle 1-2-3 till I hit 50Mph, then 4-5-6 as I am up with the traffic, then slow down for a roundabout. Close the throttle. POP....POp....Pop...pop.
Performance wise? Well, I have shed the best part of 14Kg, and replaced it with under 2kg, which is about a 5% weight saving, so any improvement might be down to weight loss.
It does feel slightly faster, I have to say.
The biggest change I have noticed is in gear shifting. I have had the bike for a year & over 1,500 miles, 5 days a week use, 52 weeks, and never managed up-down shifting as smoothly as I would like. My last bike had no cat (that was a 1981 carb 250 Suzuki.) Now this bike has no cat, and . . . .
It's like a different bike. I can pop up/down through the gears and the engine revs up for down changes, and drops revs for up-shifts in response to tiny throttle inputs, just like I used to be able to do.
That bike also had a similar exhaust.