GT
Whether the stock ECU's parameters can capture whatever benefit the bigger plenum would introduce is a separate topic - it is the insistance of the "break in"/ "adaptation" mileage which I can't buy !

Proper tuners with engine dynos test various components like this plenum by power testing the engine, bolting the component on and then power testing again (after the second power test they will attempt to fine tune to maximise any gains) they DO NOT have to run the engine with the new widgit on the dyno for any length of time, this just does not happen, it doesn't work like that.The ECU will react instantly to something like this going to the optimal map for the extra airflow after only a few full load power runs....

This is how professional Porsche engine builders with 250K engine dynos do it- but TBH with all the awesome butt dynos around here able to sense ~20hp on a 480hp engine suddenly kicking in after 40-200 miles the whole topic is a bit moot