Thanks for the response as I've watched all of the videos a few times and am still left wondering if the Extreme is somehow a bit too much - or not. The V6 "sound" is so different from a typical V8 with exhaust mods (read: much more subdued) that I'd just want to be sure that I made the right...
It'd be nice if you used a db meter at rest and on the road as it is a little difficult to get a sense as to how much the two systems differ in terms of sound. I am surprised that the H-pipe system without mufflers doesn't seem that loud.