Yeah, that's what I was told initially, then someone else told me that it was a limitation of what vag-com could register from the ecu rather than a limitation of the sensor itself ... oh well - whatever ...
... which kinda begs the next question: If the S4 MAF sensor maxes out at 335 does this limit the fueling/timing/spec boost that the ECU can request (due to it only ever being able to "see" 335 g/s as the max air mass/flow) ???