old noob on a new ninja

Gday all,
My name is Andrew. I'm from sw Sydney. I'm 36& returning to riding after 10 years with no bike. I decided to get back into riding after a ride on a mates gsxr600. I always wanted a zx7r in my younger days and 600s now are the size 250s used to be so the decision was to go zx10r
I've been stalking the forum for a couple of weeks now while waiting for my bike to arrive from QLD. Now its here I've gone about some personalizing
The green and black 2013 model now wears a puig black screen, tail tidy, the k&n is waiting till I have the time to drop it in and the Vance and Hines urban brawler doesn't appear to fit as a slip on replacement for the stock can. So here's my first questions...
Does anyone have this pipe on their zx10r?
Is the difference in pipe diameter due to differences between aust & USA bikes because of emissions laws?
Should I get an adapter made up?
Or just go buy a Yoshi can from mcas?
Thanks in anticipation of some advice
Andrew
My name is Andrew. I'm from sw Sydney. I'm 36& returning to riding after 10 years with no bike. I decided to get back into riding after a ride on a mates gsxr600. I always wanted a zx7r in my younger days and 600s now are the size 250s used to be so the decision was to go zx10r

I've been stalking the forum for a couple of weeks now while waiting for my bike to arrive from QLD. Now its here I've gone about some personalizing

The green and black 2013 model now wears a puig black screen, tail tidy, the k&n is waiting till I have the time to drop it in and the Vance and Hines urban brawler doesn't appear to fit as a slip on replacement for the stock can. So here's my first questions...
Does anyone have this pipe on their zx10r?
Is the difference in pipe diameter due to differences between aust & USA bikes because of emissions laws?
Should I get an adapter made up?
Or just go buy a Yoshi can from mcas?
Thanks in anticipation of some advice

Andrew