living with V8 manifolds, 200cell cats and oem backbox

[divetheworld]

A simple question to those who had it done.
I'm putting my hand in my pocket for performance manifolds (ceramic coated) with 200 cell cats but sticking with the original backbox.
How is it to live with?
Valves open, there are loads of video's and stuff and I can see how much fun they are with the noise and extra juice it gives a recent 4.7.
Not much info on normal driving with valves closed. Your experience and opinions would be appreciated relating to noise.

[divetheworld]

Cheers Mikey.
So not too loud and "droning" on long journeys? Did you have any discussion or opinion on ceramic coating?

[divetheworld]

That's the kind of stuff I wanted first hand. Thanks Guys.
Much appreciated.