Today I replaced the stock exhaust can with an aftermarket one, from a brand named GRMoto. According to the blurb it is made in the UK. They do several types and I got one that has a 'titanium' look with a 'carbon' end cap. I think it is in fact just stainless steel and it wasn't hugely expensive. It weighs a lot less than the stock item, sounds much better and it comes with a 5 year warranty, so why not?