Hi !
Thank you for your comment
The kit will work with the 987 airbox and MAF housing, I have at least two customer doing the same thing, one on a 986 2.7 and the other on a 550 edition (which has a 987 airbox from the factory).
You will just need to find the correct intake tube to connect the two. If I remember, a long 45° silicone elbow works.
By the way, the new version is out, and it features a quick disconnect to reuse the factory AOS hose, making the installation simpler and getting rid of the silicone hose I was using previously
And the 996 Version will be there in 2020 !
Ben