www.delkevic.co.uk I got the carbon oval for my Thundercat. It has a removable baffle as well.
Picture of your FY please!And here I am.
I have a CBR600 but the FY model.
Exhaust brands I have looked at are MTC, Fuel, Beowulf, Simmi Performance, Xtreme Stainless, Pipewerx and Hawk.
All UK based companies from what I can gather and all in the £120-£300 price range depending on the style you get.
Should be getting one in May/June.