After trying and testing 4 different versions personally, this is the best version available I run this exact PCV kit in my gen1 B58 BMW daily car.
Bohaner PCV Valve Cover Repair Kit Membrane Diaphragm Cylinder Head Cap 11127645173 500142091 for BMW B58
BMW -HYBRID Li-LON BATTERY BAt48 gen 1.0 10ah 440Wh 44V 6121 5A32487
Bosch B58TU HPFP Upgraded TU High Pressure Fuel Pump for BMW B58 Engines
BMW B58 BILLET ALUMINIUM PCV Diaphragm Valve Cover Repair Kit Cap F20 F22 40i
BMW B58 PCV Diaphragm Kit Valve Cap with Membrane
BMW B58 PCV Diaphragm Valve Cover Repair Kit Cap F20 F22 F30 F32 G30 11127645173
