Kia Ora mark,?
Are your pipes original? Headers and mufflers one integrated unit?
You probably know that they are actually a pipe inside a pipe right??
Mine came unstuck at some point, I had to cut the mufflers off to be able to reweld the inner pipe to the outer pipe (it was rattling around inside)
Anyways, I'm saying this because after that happened, I have been free to try out all different kinds of mufflers on the bike (slip on cans) to get the right sound (and look)
Now I have cans for when I'm blapping around my local area,(real loud) cans for when I'm on tour, and something in between! ?
It's been a lot of experimenting.?
Theres some interesting stainless units getting made in Thailand, they look the business, and sound good too. Probably too loud to be legal, but I guess it depends where you live!?
I haven't tried them, I have been asking around this forum before, but apparantly no one on here has ever installed them. Beats me.?