It was only the gt or gs that got dual exits,xr6/8 only got the right side exit($650 for dual exit gs/gt delivered ebay)
Xr6/8 diffuser ($280 delivered ebay)
The new genuine ones are a way too pricy for me,im just chasing a second hand one.
I actually have a dual exit manta exhaust on the xr8 which means pay $650 for a piece of plastic or get a s/h single exit diffuser and modify to suit the twin exits.
Its only for cosmetics,im removing the towbar and i cant stand to look at the hole the towbar left behind.
If i cant find one ill find a way to plug the hole,certainly not ideal but might have to do it.
Bank acc is almost tapped out just buying the xr8,all parts will need to be cheap