Originally Posted by CanAutM3
Iterresting approach, I like it
. Seems like a simpler installation and no issues with rubbing. It most probably is not as efficient as a full backing plate setup but it should improve cooling a little. I use my car in the winter, so a full backing plate setup is out of the question for me. This could be an alternative.
Please post an update after you ran it at the track
I have been thinking about doing this myself to keep things simple and eliminate rubbing (I have to turn full lock everyday when I park).
Not sure if any of you have seen this but the F30 comes with a backing plate that really opens up inward to "scoop" more air. I thought I might try adapting this backing plate to my car and combine with the hoseless ducts. Not sure of the backing plate diameter versus the E9x M3 diameter but it's probably close enough.