N54 Vacuum Side Oil Catch Can For BMW 135i, 335i, 535i, 1M (E Chassis) Options:Without BOV adapter and without OCC *For the Infiniti Q50/Q60 JB4

*For the Infiniti Q50/Q60 JB4 platform connect the white or blue wire to position #4 on the JB4 25 pin harness

Support for M Series & Competition specs: the S55 engine platform includes F80/F82 M3

• 2006-2010 E93 Convertible 335i / 335ix

This is only recommended if you already have a turbo upgrade or plan on installing one in the near future as it can cause a slight pressure drop on the OEM IS20

N54 Vacuum Side Oil Catch Can For BMW 135i, 335i, 535i, 1M (E Chassis) Options:Without BOV adapter and without OCC *For the Infiniti Q50/Q60 JB4The BMS vacuum side N54 OCC works in conjunction with our world famous boost side N54 oil catch can to prevent engine oil and PCV gunk from coating your intake valves and hurting engine efficiency under engine vacuum operation. Our boost side OCC separates oil traveling through the PCV while the engine is operating under boost pressure (e. g. heavy throttle) and our vacuum side OCC separates oil traveling through the PCV while the engine is operating