N54 Replacement PCV Valve for BMW 2006-2016 135i, 335i, 535i, 740i, X6, Z4 M4 (F83) we also offer a "shorty"

we also offer a "shorty" 3

(Check compatibility for your platform below)

These spacers install into the post-catalyst O2 sensor bungs

• 2014-2015 F30 F31 N55 BMW 335i including xDrive

offering quick installation and the best flow of any available drop in filter

N54 Replacement PCV Valve for BMW 2006-2016 135i, 335i, 535i, 740i, X6, Z4 M4 (F83) we also offer a "shorty"The N54 PCV Valve is an upgraded replacement PCV valve for your N54 BMW engine and is strongly recommended for your high performance (or higher mileage) N54. The OEM BMW 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. Depending on the condition of your PCV valve it could leak