KTR Cat Back and Decat - Trackworthy?

[madmover]

I have a 197 with a KTR Cat back system installed. Debating if to Decat it, however, I'm keen to hear from anyone who has one (or knows) if this set up would pass on a 102db drive by day?
Also, does it sound like a wet fart or does it sound half decent?

Thanks in advance.