To juanbenae's point, there are numerous replicas of George's headers. A giveaway of the replicas is their collector. I know of at least two replicas that use a sheetmetal fabricated collector, Triad West and MSDS
Here's a Triad header
and here's an MSDS header
Both Triad and MSDS are west coast made in USA companies. I'm not faulting them for making their own stuff. Just pointing out how their headers are different.
Then there's the made in China junk like OBX brand (might be called Becker now?) that copied the George's header and their headers are junk
