So post "176" towards the bottom of page 6 on this build thread I described the original MAF failing (in February 2016) and replacing it (for some reason on this forum it's not possible to add a link to an individual post on a thread, whenever I try it, it just jumps back to page one?).
So a while after replacing the MAF I was curious to measure the 2016 MAF air flow readings combined with a paper OEM air filter, vs the 2003 MAF with 'performance' sports panel filter. I had noticed before the MAF failed that the car was feeling a bit dull and seemed to have lost it's the "edge" to it's boost. The images below are taken from a measurement view on the FIS-Control, the third line up from the bottom is the "peak" figure measured on that particular run.
2015 Reading 1: 215.64 g/s = ~269.55 BHP
2003 original MAF, R32 DSG air intake, Piper cross panel air filter
2015 Reading 2: 217.64 g/s = ~272.05 BHP
2003 original MAF, R32 DSG air intake, Piper cross panel air filter
2016 Reading (new OEM MAF): 221.11 g/s = ~276.38 BHP
brand new OEM MAF, R32 DSG air intake, standard panel air filter
The car was definitely pulling much better with the new MAF/filter, cpuld feel more torque at lower revs since swapping to the new MAF, it had felt a bit "dull" recently, must have been the MAF on it's way out. What is also worth mentioning is that swapping the "performance" sports panel filter has lost no power at all it seems, so from a "power" point of view I don't think there is a gain from having a sports panel air filter compared to an OEM paper filter. I guess the benefit might be that a sports panel filter is something you can clean regularly whereas an OEM standard paper panel filter you dispose of and replace, so a regular service cost.