Was Mopar was on to something in the late 70’s (exhaust)

The link below is probably 90% entertainment, 70% advetisement, 30% useful
It talks about how headers, with large long collectors improve power when combined with a merge into a single system WAAAAYYYYY back behind the usual "Y" pipe location;

Ive never seen, but have heard about the Mopar exhaust system for the 360 in the late 70's which had dual mufflers, and merged to a single exhaust pipe right in front of the rear axle..

What do you think? would such an animal improve midrange...

Was Mopar was on to something in the late 70's (exhaust)