Thought I'd post this here i don't know if it was posted here before. Champion labs manufacturer the TRD, K&N, mobil 1, stp, and royal purple filters. However just recently they were bought by fram. take it for what its worth. There are also some good reading to be had in the tsb's
Champion moved to the Ecore design around 2004 or 2005, same time Bosch bought Purolator.
With that move, Bosch pulled their production from Champion and moved it to the Purolator facilities, and retained marketing rights to the Purolator name.
BUT... the Mobil-1 and K&N filters remained Champion's "premium" product and did not move to the Ecore design.
I can't imagine that Mobil-1, K&N, and especially TRD, are going to accept standard Fram production design. Fram will likely retain the premium design, and add it to one of the premium Fram branded filters, and move their traditional production to the Ecore production.
They likely bought Champion to get the Ecore patents, being similar to their own design, yet even CHEAPER through the use of the nylon cage core rather than a steel tube core.