I got some Motad Venom's last year direct from Motad. Told 'em I'd seen talk of discounts on this 'ere forum and......Stainless steel ovals with link pipes etc delivered for £150

Think they were floggin old stock. Might be worth a try though.
Only problem was they come with a removable baffle which goes into the front end of the can??? I did fit them cos I didn't want to be too loud and they made the bike run like s*it and I had to remove cans to get em out. Bike passed MOT without baffles so not too loud.
On mine the fueling around 3-5k isn't great even after a dyno set up. Think this might be the bike rather than the can's though as others haven't had same problem. I think some of this might be me not being used to twins and only really effects me in 30 limits.
Oh one last thing if you do get Venom's then get some OE Honda exhaust gaskets, the ones they send are wayyyyyyyyyyyyyyyyyyyyy to thick and flimsy. Honda are pricey I think I paid £8 each, but they work.
Bikes and Birds. Twins are betters