**If options get stuck, refresh page!**
 
** The Gen1 Oil Cap will not fit with The Ross Racing V2 PCV Breather OCC Kit if your have the TU/Spool HPFP hose setup! You will need to upgrade to the Dorch HPFP hose setup for it to clear!**
 
***The B58 uses the 2-Prong Style Oil Cap like the S55, N55, N54 & many others! The fitment has been confirmed to work with the listed motors' valve covers and if other BMWs use a similar Oil Cap then the B58 style oil may fit. I have not physically confirmed this so i have not listed other motors but if you are able to confirm then you can purchase the B58 style Oil Cap for your other BMW valve cover!***
 
***For Gen1 Style Oil Cap, make sure to use engine oil to lubricate the O’Ring as well as the valve cover’s oil cap area where the O’Ring will be making contact.This step is very important as this new O’Ring will create a very tight seal and will not be able to fully seal/lock in without lubricating the two areas.In the future if you need to remove the oil cap and find it stuck or difficult to remove, run your engine until it is hot and this will help with breaking the O’Ring free. When reinstalling, always make sure the O’Ring and contact area is lubricated.***
 
Introducing the new Ross Racing Oil Cap Breather!
 
There are many options to choose from, including the option for the VTT Billet Valve Covers!
 
With the addition of the B58 Gen1 Oil Cap option, since it uses the 2-Prong style oil cap, it is very possible that it will fit other BMW Valve Covers. It has been confirmed to fit the B58Gen1, S55, N55, & N54 but if your BMW's valve cover uses a 2-Prong Style Oil Cap then this Oil Cap May Fit! Fitment cannot be guaranteed for Valve Covers not listed unless confirmed.
 
There are currently a few oil cap breather options on the market but what sets the Ross Racing design apart is the double baffle! If you look closely you will notice that while the bottom section has multiple openings (first baffle), the direct middle section is blocked off. This was purposely done so that oil does not have a clear exit pathway, instead oil will be blocked but crankcase pressure will still be able to exit with no restriction! 
 
The next thing you will notice is that the oil cap breather is packed with baffle material (second baffle) that will help prevent any oil that does make it pass the first baffle from being able to exit. I have tested this double baffle design on my personal car and have had no issues with oil misting or coating my engine bay.
 
There are a few options depending on your setup:
 
The Oil Cap Breather by itself. It will still come double baffled but there will be only a plug fitting included. Any other fittings needed will need to be sourced on your own.
The Oil Cap Breather w/ Banjo Fitting. This option will allow you to run a dump hose to VTA or tie into an existing OCC.
The Oil Cap Breather w/ One Way Check Valve. This option will be similar to the banjo option but give you extra protection. At idle the check valve will stay closed and act like the OEM cap, but during WOT, it will allow the excess crankcase fumes to be vented to atmosphere (VTA). This option will also allow you to run a dump hose to VTA or tie into an existing OCC.
The Oil Cap Breather w/ Check Valve & Filter. This option retains the one way check valve but simplifies everything! You get the same extra protection because of the check valve and because it already has the filter, you leave it as is to vent to atmosphere (VTA). no need to run a dump hose or tie it into a catch can. 
 
Very straightforward setup that will have major benefits if you are dealing with a lot of excess crankcase pressure!
 
**Disclaimer** - For vehicles seeing over 35psi of boost, it is highly recommended to run this oil breather cap with the check valve into a properly baffled OCC. While you can still run it with the check valve and filter only setup, you may still see oil make it to the filter at higher boost levels, especially if you are still on the stock PCV.
 
Please keep in mind that this modification is for OFF ROAD USE ONLY!
 
What's Included:
Ross Racing Oil Cap Breather
Banjo, Check Valve, Filter, etc. (OPTIONAL, Only included if selected)
1-Year Warranty on Ross Racing Oil Cap Breather
90-Day Warranty on Ross Racing Fittings, Filter, etc.