[328iX]

I was wondering what it took to fit the gray brembos on a base model car?

2015 328dx f31

I'm assuming they use bigger rotors?

I know theres 312mm, 330mm, and 340mm rotors. I'm guessing I have the 312mm, and are those compatible with these calipers?

If there is a forum post I missed about the gray brembo compatibility please let me know ,thanks.

[obert]

Besides getting the proper size rotor they bolt right up. I used the 340x30. I think that is what you would want to use as well. The others would be to small. You will need to bleed your brakes as well.

Just did this to my car.

[328iX]

Originally Posted by obert

Besides getting the proper size rotor they bolt right up. I used the 340x30. I think that is what you would want to use as well. The others would be to small. You will need to bleed your brakes as well.

Just did this to my car.

Ok so i will get the 340mm rotors

so what uses the 330mm rotors?

[obert]

Originally Posted by 328dX

Ok so i will get the 340mm rotors

so what uses the 330mm rotors?

I think the 330x30 would be the size for the rears if you had the bigger single piston calipers that come with the grey brembo fronts. I am looking in to doing the rears on mine due to I bought all four calipers already.

[328iX]

Originally Posted by obert

I think the 330x30 would be the size for the rears if you had the bigger single piston calipers that come with the grey brembo fronts. I am looking in to doing the rears on mine due to I bought all four calipers already.

ok thats good to know, i was looking at the rear calipers with the gray set, and they just look like the normal bosch base calipers?

or did you get the blue brembos?

[obert]

Yeah they are a little different than the base brakes that come on the 328i. Definitely not the blue ones.

[328iX]

Originally Posted by obert

Yeah they are a little different than the base brakes that come on the 328i. Definitely not the blue ones.

sweet, post pictures when you're all done if you haven't already i'd like to see

[obert]

You can find pics in my build thread

The rear calipers look a little different and they take a bigger rotor. It will help even out the look of the big 340 rotors up front.

I would replace the rusted bleeder valve on those calipers.

[328iX]

Originally Posted by obert

You can find pics in my build thread

The rear calipers look a little different and they take a bigger rotor. It will help even out the look of the big 340 rotors up front.

I would replace the rusted bleeder valve on those calipers.

oh this is just a google image, i'm looking for clean ones. thank you ill check it out

[obert]

Originally Posted by 328dX

oh this is just a google image, i'm looking for clean ones. thank you ill check it out

Oh lol I have seen a few on here for sale but I am sure you have to.

[328iX]

Originally Posted by obert

Oh lol I have seen a few on here for sale but I am sure you have to.

yeah someones selling some in the classifieds, trying to get in contact

[Vulpe]

Wondering if your dust shields would fit/work with the bigger brakes.

Just took my stock brakes off last week. Was thinking about selling them in the future, just need to figure out shipping/boxes.

[328iX]

Originally Posted by Vulpe

Wondering if your dust shields would fit/work with the bigger brakes.

Just took my stock brakes off last week. Was thinking about selling them in the future, just need to figure out shipping/boxes.

oh yeah almost forgot about that, I'm sure obert knows, and I am looking to buy!

[obert]

Originally Posted by Vulpe

Wondering if your dust shields would fit/work with the bigger brakes.

Just took my stock brakes off last week. Was thinking about selling them in the future, just need to figure out shipping/boxes.

I had the grey brakes on with the stock shields. They fit but they are really small compared to the bigger ones that come with the bigger brakes.

[sspade]

I'm doing this project right now.

There's a thread on it (actually multiple). With part numbers. I'm sure you saw that and started your own thread anyway.

[sspade]

All of the answers are on realoem.com

You should get acquainted with that site!

[328iX]

Originally Posted by sspade

I'm doing this project right now.

There's a thread on it (actually multiple). With part numbers. I'm sure you saw that and started your own thread anyway.

yes i saw multiple, but mainly for the blue calipers, or people asking about both and it seems like everyone is just guessing, no straight answers. i'll check out realoem

edit: been looking it up and still can't find solid information, posting links rather than saying "go here" really helps, or at least it whats I do with other members.

[bheng89]

https://f30.bimmerpost.com/forums/sh....php?t=1581407

front parts # that sspade is referring to.