FGK exhaust

looking at updating my exhaust on my car as its sounding a lil um old..I discovered its an FGK and I love the tone it makes..does anyone know much about these or even know any suppliers in Australia as id love another...

 

never heard of these's befor..whats the sound like?

 

FGK = Fujitsubo.

According to the internet these guys sell them/get them in.

Clicky

 

I don't get it, how is it sounding old? :S