Dominic, thanks for the pictures. It's great to know there's another system out there with low resonance. But I just can't get past that look. To me they look out of place, they don't tuck up at all and the tips are way oversized for the opening. Maybe I need to see it in person, but in pictures it doesn't do it for me.
This is the one I first saw it on. Maybe it's the camera angle/distance but it looks sort of cartoonish:
The tires on that car and the exhaust both look way too big for it.