Dump Pipe fitted - All good no codes!!!
I got it flanged to the existing OEM CAT.

Power increase: Not much, maybe a slight increase.
Noise Level: Cruising no different, hard acceleration nice roar and turbo spool.

Issues: Yes! It was rubbing on the steering rack heat sheild, had to squash it to make more clearance, now all good!

Result: Slight increase in power, but retains OEM sound - which is what I wanted to achieve!!!

Glenn