Here's a sound clip as promised. I'm still tuning the the idle after an engine rebuild, but this should give a pretty good representation of the muffler's sound. It seems quieter than the Bursch that was on there before, but I'd have to hear them side by side to really compare.
Engine is the original '73 2.0L with stock FI. But, it's just been rebuilt, balanced and slightly bored w/ 96mm pistons giving about 2056cc displacement; cam is a Web Cam #73; solid lifters.
The engine work was done by Hersch Performance Racing AKA Hayden Lake Automotive. I'm pretty happy with their build. They even matched the valve spring rates as part of the balancing.
[Sorry, video link broke...]
Positive and/or helpful comments are appreciated. Snarky remarks shall be tolerated.