Anyone heard a QTP Screamer muffler?
 

Looking for something a lot quieter so I can actually hold a conversation with my kids in the back seat while driving them to/from school. I currently have flow master 44 and it sounds great outside but the drone inside is too much (especially since my hearing is crap from all the loud music I used to listen to).

Was looking at the QTP Screamer muffler since it's a small all-in-one muffler and cutouts but can't find any reviews or any good sound bites that give an indication how quiet it is or if it would sound good on a 383 SBC. I've seen videos for their old Corvette twin-tronic setup, but not clear if that muffler has a different construction.

thanks for your help!
-Adam