BMW N54 Replacement PCV Valve for 1M, 135i, 335i, 535i, 740i, X6, Z4 X6 (E71) Plug and Play wiring: Yes

Plug and Play wiring: Yes

You can add this 48" extension to relocate your ECA or extend your current wiring harness an additional 48"

Premium Manufacturing: Made in Taiwan

1/8" NPT Bungs Post IC for WMI or CPI

Upgraded AN6 fuel supply line

BMW N54 Replacement PCV Valve for 1M, 135i, 335i, 535i, 740i, X6, Z4 X6 (E71) Plug and Play wiring: YesThe RB N54 PCV Valve is an upgraded replacement PCV valve for your N54 Engine and is strongly recommended for your high performance (or higher mileage) N54. The OEM plastic PCV valve does not hold pressure well even when brand new. What the leaky PCV valve means is that when you are in boosted conditions, the "highly" pressurized PCV valve leaks turbocharged pressures into the crankcase. Pending on the condition of your PCV valve it could leak worse