Quote:
Originally Posted by Salty B.
Your N55 is known for leaking oil filter housing gaskets and leaky valve covers. I have that engine in my 3er, and so far no leaks despite being almost 11 years old but with low mileage. Both are a large pain in the ass to replace, and the OFHG failure can lead to serpentine belt failure or even ingestion through the front main seal. Just a heads-up.
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Yeah. There's a little seepage that I'm keeping an eye on. Also, the downpipe. I have wondered aloud if the N55 downpipe from anything else would fit another N55? Like is there something in the way that's not there on an 3'er or 5'er with the same motor.
The downpipe, intake and intercooler are the 1st things I will do. Both for peace of mind in heat soak and maintenance as well as the performance. The N55 is great when everything is spooled. I want that torque quite a bit sooner.
