B58 PCV Cap Upgrade for BMW M140i M240i 340i 440i - VTT-B58-PCV-CAP

Direct-fit billet aluminium PCV cap for Gen 1 B58 engines in F20, F21, F22, F23, F30, F31, F32, F33, F34 and F36 chassis - including M140i, M240i, 340i and 440i.

• Replaces the brittle factory diaphragm with a robust machined cap, banjo fitting and vacuum/boost adapter
• Eliminates oil smoke, rough idle and inconsistent vacuum - no more failed emissions checks or crankcase pressure issues
• Works with stock or tuned setups, including catch cans; ideal for fast road or track day use
• Full kit included: cap, banjo, adapter and check-valve hose - simple DIY swap, no special tools