Review on 🏎️ Enhanced PCV Valve Replacement for BMW N54 Engines: FTP Motorsport Upgrade for Improved Performance in E82 E90 E8X E9X 135i by Jeff Henkhaus

I replaced the N54B30 valve cover anyway and read about problems with the PCV valve in standard application. Set up DINAN level 2, so don't use a heavy boost, but you should consider this product. A faulty PCV valve and breather hose (non-return valve built into the breather hose) can cause oil leaks/oil burning problems. Since the PCV system has been built into the valve cover, it is highly recommended to replace the valve cover, add this PCV valve and a new PCV breather hose to ensure optimal performance. This PCV valve is also recommended by other reputable BMW tuners, but here it is competitively priced with the best shipping options. Worth the money, happy with my purchase, will buy again if I need to replace a new valve cover.