Exhaust replacement

[seanonions]

I have a blowing exhaust on my 2005 Boxster 987 2.7L. Now sounds like a tractor.
It has gone on the pipe from the left hand back box/catalyst. Garage says better to replace the whole system. I am not in need of a sports system but that is all I can find as a replacement.
Does anyone have any advice.

[DavidGardner]

Have you tried these guys ? www.topgear.co.uk
I can't vouch for them but they seem to suggest they have a wide selection of what you need ?