If your exhaust is a 60 mm diameter stock pipe (one flowing curve, not shaped with ~4 bends), then it's an NLA part. replacements do exist, but are very different to the eye.
Unless yours has rust holes, it may have some value for someone. (fyi, 55 mm is for the 2,5 and 2,8 l engines; 60 mm for 3.0 engines)
I'm on the other side of the pond, and I haven't been able to locate a new 60 mm pipe.
If yours is 60 mm, then I'm interested.
Shipping cost may make this a stupid proposal: Send the tailpipe to me, I will get the tip off cleanly and send the tip back to you. We can discuss cost.