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      12-21-2018, 09:59 AM   #1
wmuncaster
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Drives: 2011 e90 335i PPK
Join Date: Nov 2012
Location: United States

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N55 Valve Cover Replacement: Aftermarket or OEM?

In addition to the nearly $500 OEM valve cover, there are several aftermarket options available. Although I'm confident that the OEM and aftermarket covers can both retain oil equally well, I'm curious about the comparative quality of the integrated PCV valves.

Does anyone have insight into the quality of the integrated PCV valve in the OEM valve cover versus an aftermarket one? Is it worth it to pay $100+ for the OEM cover and valve over aftermarket?

Lastly, does anyone know if a third-party manufacturer makes and rebrands the OEM part?

Thanks, all!