Originally Posted by Gen_E92
I installed it myself initially, the duct does bolt up to the oil cooler, just leaves a huge gap between duct and bumper. So I brought it to body shop, they trimmed it more and attached the duct to bumper instead, the duct is not 100% sealed against the oil cooler (since it's no longer bolted) but very close since they did a great job!
Kudos on a great and well thought out install! I'm thinking of doing the same thing to my e90 335. On the oil cooler duct, it seems odd that there would be a gap between the duct and the bumper when it's bolted to the oil cooler since I would presume distance from the oil cooler to the vent in the stock M3 is longer than in a 335 with the M3 rep bumper. Therfore it seems like the M3 vent should be too long for the 335i not too short. Is this not the case?
Ideally I would like to have the duct attached on both ends and I'm trying to get a picture of the geometries involved. Do you have any pics of the install or the duct? If so it would be hugely helpful.
Again, the result looks great!