[Igor_M5]

I'm trying to figure out what ducts I need for the auxiliary cooler on the driver side if I'm running an LCI E90 M-Sport bumper. Can't find anything except the the exit vent that mounts to the driver fender liner.

There's also the specific brake ducts for the M Sport equipped models, and another set for High speed synchronisation (aka PPK2).

But is there a set that's made for both? I'm hella confused....

Reason why I mentioned 335d is because apparently they're optionally equipped with the auxiliary coolers, so maybe someone could chime in?

I usually never have problems with BMW's ETK, but this one is burning a hole in my brain.

Please help me sort out the P/N for brake ducting, and cooler ducts (both sides) for the LCI M-Sport E90 bumper.

Edit:

If you see the attached PDF for PPK2 installation procedure, it mentions the parts that are part of the retrofit, but are not supplied with it, and according to those lists, I need "AJ" for the Rear Air Guide, but then the Front Air Guide becomes unclear because it does not specify anything for an E90/1 LCI M-Sport.

Either way, for starters, where the hell do I even find the P/N for "AJ"

[Igor_M5]

Anyjuan?

[unrulyteach]

51747891383 think that's the part number.

[Igor_M5]

Originally Posted by unrulyteach

51747891383 think that's the part number.

I think that's just the duct for the passenger side cooler... guess I'll have to order a bunch of random ducts and see what I can make work. :/

[unrulyteach]

Originally Posted by Igor_M5

I think that's just the duct for the passenger side cooler... guess I'll have to order a bunch of random ducts and see what I can make work. :/

What duct are u looking for exactly

[Igor_M5]

Originally Posted by unrulyteach

What duct are u looking for exactly

Duct for the auxiliary cooler on the driver side for a LCI M-Sport bumper, not sure if it needs a special brake duct to accommodate it as well...

[unrulyteach]

Originally Posted by Igor_M5

Duct for the auxiliary cooler on the driver side for a LCI M-Sport bumper, not sure if it needs a special brake duct to accommodate it as well...

I'm not familiar with one on the driver side i hav 2011 335i msport with oil cooler. Only know one on the passenger side the right side

[Igor_M5]

Originally Posted by unrulyteach

I'm not familiar with one on the driver side i hav 2011 335i msport with oil cooler. Only know one on the passenger side the right side

It's an optional upgrade for N54/N55 from the dealer, labeled as a Performance Pack Upgrade. Also comes factory equipped with 335is models and optional from factory for 335d models.

Did some digging and could only find owners with E92's who did the upgrade.

The attached PDF in original posts provides the details on the required ducting but doesn't specify part numbers, and RealOEM doesn't list part numbers for the ducting but shows the picture of it in the diagrams.