there a limit in Hz for 1g mas?

[Goat Blower]

We had to remove a couple of honeycombs and retune for it, but we've got logs showing 4000hz on my 2g MAS, that's the highest Link will log apparently. Yeah, we've got fake MAF checked and I don't remember exactly where it was going funky, but it was a lot higher than 2800hz.