I can't comment fully because I don't have a Roadster and the original Cooperman pics don't show the whole intake path. The V6 mustang is a better photo in that respect so if anyone has that perspective from the same model Roadster it would be nice to get that posted here.
However, IMHO what Cooperman has done will not spoil the tuning of the system because it's all on the dirty side of the intake and he has not altered the clean side at all.
By the time the resonance gets through the filter it's strength is gone anyway and as I say, from what I can see, there are no changes between the ports and the filter.
The dirty side of the airbox is there predominantly to make the system quieter and collect cool air.
I'd be interested to see where the throttle body is in the Roadster intake system.
