From my understanding...
There's that much air entering the engine bay that adding a small piece of tube in the path of where airflow will be moving anyway is a bit well... Inefficient. Stable air is better than turbulent air for a cone, laminate air and all that. It's reasonable to assume that a cones demands for air on the likes of the LCR will not be met by putting a bit of corrugated (turbulence again) pipework. Race cars I've seen rarely have the pipework there if they're running open cones (such as a Time Attack Evo I've seen).
Enclosed filters obviously are different as they take air from within a box, which needs a supply, which is why the likes of your twintake has a feed to the front etc etc.
I've not got any logs / flows. Not into any of that at the moment. Can't log with my liquid gauge and I'm not buying vag com to read logs etc. More interested in how it feels on the road. I'll keep an eye on my gauge next time I'm out in it and will throw some figures your way (if I can remember them )
The supercopa airbox I've not got a link for, just photo's of it. I'd imagine it's a custom item from Forge
Valid points! Indeed alot of race spec cars don't have cold feeds when running bigger open cones..
The enclosed cone market is a bit poo for the LCR wouldn't you say though? Green dynatwist has been proven not to take in as much g/s as an open cone jetex for example, and they cost alot!
I'm going to go check some prices on 57i's and might sling one in soon