How muc would it roughly cost for a shop produce one of these? It takes out the rear muffler, is quite a common conversion. Priced at £200 pounds on 928spares.co.uk
The pipe and bends are < 50 quid but the custom tail pieces .. no idea.
It's probably a nice little earner for them but as with all these things - they have to make a JIG and that takes time and they probably don't sell many.