Nissan Largo Friends

Hi all. I am from Gloucester. some one took a liking to my back box on my largo, its a largo grand star petrol 2.4 and they cut the mid section pipe, they never got away with the box but I am stuck the exhaust is discontinued. been to the main dealers Nissan has stopped making the exhaust. any help? and I am looking to put a smaller mid box has anyone done this?

Is there just a gap in the pipe before the box? You could put a sleeve over it to seal it. If it's a longer gap there are various pipe sections available on eBay that can just be clamped in place.