***DISCLAIMER - ONLY COMPATIBLE w/ motors with a functioning PCV! If Headports have been plugged, this Breather cap will not function as intended because there will no longer be any vacuum in the crankcase.***
 
**OEM Valve Cover REQUIRED!!! Confirm that your valve cover is BMW OEM before purchasing as the VU cap will NOT work with aftermarket valve covers!! ONLY COMPATIBLE WITH BMW OEM VALVE COVERS!**
 
***Video of how to PROPERLY install the VU Breather Cap has been LINKED HERE so please WATCH & LISTEN to the video carefully! Improper install could cause the middle check valve section of VU Breather Cap to snap! This will not be covered by warranty & any damage caused to the VU Breather Cap or your valve cover will be YOUR responsibility & not ours (Ross Racing)!!! - Please just follow our install video guide and if you're still not comfortable installing it, bring your car to a shop.***  - VU Breather Cap Install Guide Youtube Link
 
Introducing the first of its kind, the B58 Gen1 Check Valved PCV Breather Cap, aka, the PCV Breather VU (Version Ultimate)!
 
This new breather cap will be a game changer in more ways than one! Similar to our B58TU Check Valve Inserts, our PCV Breather VU during idle will still allow vacuum in the crankcase but under boost it's a different story. Once boost tries to get past the check valve, it will force the valve shut which will prevent any boost from entering the crankcase. In layman’s terms, stock PCV during idle with vacuum in the crankcase but under boost the PCV will be deleted! Best of both worlds! This will also mean little to no smell!
 
With this setup there are special requirements. With vacuum in the crankcase, you cannot just run a regular open style banjo as this will create a vacuum leak. This is why we designed a special check valve/PCV AN10 Banjo that will stay closed during idle to prevent a boost leak but open under boost to ensure the excess crankcase pressure is able to VTA! Three custom designs working in tandem with each other to create the ultimate solution to PCV issues! Sounds simple enough once explained but it's anything but, otherwise others would have already thought of it!
 
This kit will come with the ability to either vent through 1 port (other port will be capped) or vent through 2 ports. As mention, the AN10 banjo supplied for each port will have a check valve/PCV function that will stay closed during idle (vacuum in the crankcase) and opened under boost to expel excess crankcase pressure. Best of both worlds!
 
ONLY COMPATIBLE w/ motors w/ a functioning PCV! If Headports have been plugged, this Breather cap will not function as intended because there will no longer be any vacuum in the crankcase.
 
Pricing is higher than my other PCV Breather Caps but for good reason because this just does more! This cap is a much more complicated design with smaller, more precise parts and of course the required addition of my Ross Racing custom AN10 PCV Banjo fitting. It's ultimately 3 products in 1!
 
DISCLAIMER
For Off-Road or Closed-Course Use Only
This product is designed and intended solely for use on vehicles participating in off-road or closed-course racing events. It is not legal for sale or use on any pollution-controlled motor vehicles in the state of California. By purchasing this product, the buyer acknowledges and agrees that the product will not be used in any manner that violates local, state, or federal emissions regulations.
 
Notice to California Residents:
The sale or use of this product on any vehicle registered for highway use in California is strictly prohibited. This product does not comply with the California Air Resources Board (CARB) emissions standards. Any attempt to use this product on public roads may result in fines and penalties, and the buyer assumes all responsibility for compliance with applicable laws.
 
Important:
Installation and use of this product on a pollution-controlled vehicle is a violation of federal and state laws and may be subject to fines and penalties. This product is sold for off-road or closed-course use only, and the manufacturer, distributor, and retailer are not responsible for any misuse or non-compliance.
 
What's included:
Ross Racing B58 PCV Breather - VU
Ross Racing Valve Cover Port high-side Banjo Fitting
ALL necessary hardware/accessories)
1-Year Warranty