I really like how "polite" my stock exhaust is; but I'm young and silly, and would like the ability to be obnoxious when my spirited driving needs some dramatics to it.

I've been looking at the NW's cutout with the electric valve configuration; but I could not find any information from searching on here as to the volume of the cutout when closed.

Can anyone with this setup give me some insight?

What I am looking for is:
When closed:
Is the volume/sound below 3k similar to the stock configuration for the most part?
Is there a significant change to the volume/sound at WOT?
How is the "quality" of the sound in your opinion (does it become raspy, more "bass", etc.)?
Same information for when the cutouts are open would also be appreciated

Thanks in advance gang!
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Edit: I have read the description, but I'm not going take the word of someone attempting to sell me something 100%.