Hi all, does anyone know where I could source a standard downpipe with cat for a v6 turbo 2000. Mine is badly corroded at the spring connection to the rear cat or

1. Is a new flange an option? Pipe work looks ok

2. Would a 100cel sport cat be an option without remap?

I've tried eBay and Grade A, main dealer quoted nearly £800!!!

Any advice or help appreciated