I am answering a post that is a bit old but where does it say it comes with a set of filters? Also that engine cover is a two piece assembly, the front half unclips from the main body. The front half fits some V8 engines using a different rear half.
The number given is for the rear half of the cover only as far as I know. Back in the day people purchased that part and it came without the nose piece.
If I am wrong then I will correct the .pdf I did, shown in post#2 of this thread.
I would imagine that the filters alone would cost $50.