The Ross Racing PCV Adapter is 100% plug and play!
 
I designed this specifically for the Gen1 B58 but based on the design of other BMW valve covers, this PCV Adapter should fit just fine.
 
Designed with 2 orings, this will create a perfect seal that will only allow air/oil to pass through the adapter. From there this can either be coupled with a catch can, breather hose, or whatever you decide.
 
What's included:
Ross Racing B58/N55/S55 PCV Adapter
90-Day warranty