Unanswered SRAM X1 cage interchangeability?

[lumpy]

I find myself needing a longer cage as my chain is way too slack in high gear and too short on my 46t with fully compressed suspension. Levo with 30t chain ring and 9-46t e13 cassette.
I know Garbaruk makes one but I have to think there's some from SRAM that will work.

Thanks!