7 Months- 10000 Miles later this mod is still doing great, nothing new to report. Just keeping everyone informed.

Cain't be any long term effects
 

Every car from the mid 60's used this modified design. PCV in valve cover piped into intake manifold. I just made this change to my 2005 X3 had unexplained oil lose and chocolate mayo in valve cover. My boat engine uses this same design PCV in valve cover piped to intake manifold. She is run a lot harder then my X3. Engine is clean(no mayo) no oil lose. Glade I found this post

Good to hear! :)

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11000 Mile Update
 

This is the most amaizing mod for M54! No oil consumption and no noticiable side effects! It is so nice not to worry about hydrolocking the engine in cold weather and adding oil multiple times between oil changes. My OCI - 6.5 - 7.5K.

ok, sorry to dredge this up, but thinking of going this route, any long term neg. effects?

Just reached 12000 miles with this mod. Currently at 201000 miles on the odometer. Engine runs like new. No mayo and no oil consumption. Highly recommend.:thumbup:

Good to hear, I never have mayo in the summer, but come winter time it's terrible. I'm tired of replacing ccv's every 2 years...

whats up wit is?
 

do the e46 3.0i cars like 330i or 330xi have a pcv or ccv system?

i saw its for some other 3.0i models... would it work for ours?
i just stumbled on it and was curious

Robot Check

Anything with an m54, should be all the same

would that kit be a new ccv or is that bypassing the ccv with a pcv?