Yo!!
I arrived at Danmar at 2pm sharp, Kenny, the fitter, gave me all the advice needed. He fabricated an all-through system using stainless steel, one back box and a straight pipe to the front cat down tube. He was finished at 3:10, my mate and i' spent the hour in the pub next door, very convenient.
The exhaust note is deep, a slight rumble at low revs, then a throaty roar up the revs then, evens out to a gutsy top end growl. Kenny, will tune the back box if you are not happy with it's note.
I recommend Danmar, what price would you guys say for this work?
Regards,
Martyn