E9X Brembo GT Kit Compatibility

[Exclusivs]

Am just curious what parts of the E9X's are transferrable to the F8X's.

- Brembo GT Kit?
- Wheels? IE: 18X9.5/10.5 et low 20's

Thanks in advance!

Might be spending more time over this side of the forum in the near future

[classic6]

When i spoke with Brembo, they told me it was a full new kit and that parts wont be transferable. this is just what i was told.

[brian99997]

floating vs non floating right?

"What is different about the new BMW M3 and BMW M4 is that fixed-calliper brakes are now fitted to the front and rear axles, with four pistons at the front and two at the rear. The predecessor had heavy single-piston sliding callipers."

There are really very few actual brembo calipers really just the gt and gtr line unless you add p4's, the kit must be mostly a fitment issue.

[Exclusivs]

Got it:

Believe EAS can chime on this thread - Know their M4 is running brembo's

[IND-Distribution]

The main compatibility issues lie in the bell design. BMW changed the suspension upright between the E9x and F8x cars, and also changed the overall wheel and suspension packaging. In fact, the newer car has slightly less axial clearance in the rear due to a different offset of the brake bell.

The hub center is different from car to car, and so the Brembo brake disc bells and caliper brackets are different between the E9x and F8x cars.

The F8x does use a fixed brake caliper, as opposed to the old E9x floating calipers- a substantial improvement in rigidity and pedal feel.

Here's a photo of one of our Brembo kits, for reference:

[Amgeater2]

Originally Posted by classic6

When i spoke with Brembo, they told me it was a full new kit and that parts wont be transferable. this is just what i was told.

This is a bunch of BS.. they just want everyone to buy a band new set

[Exclusivs]

Thanks for the info guys

This is useful for those in E9X's looking to get into F8X's

[Technic]

Originally Posted by Amgeater2

This is a bunch of BS.. they just want everyone to buy a band new set

Only the E92 M3 Brembo GT front rotors are the same for the F80. Everything else is different.

I'll be selling my E92 M3 Brembo GT kit that I kept for my future F80 because of this.

[IND-Distribution]

One of the key issues is the piston sizing. The sizing is different from E9x to F8x. The different piston sizing leads to different hydraulic pressures, and will ultimately result in incorrect brake bias. This isn't something that can be cured easily (short of using an in-cabin bias adjuster), and so for me performing a retrofit like this would not be a useful undertaking.

[Exclusivs]

Originally Posted by Ilia@IND

One of the key issues is the piston sizing. The sizing is different from E9x to F8x. The different piston sizing leads to different hydraulic pressures, and will ultimately result in incorrect brake bias. This isn't something that can be cured easily (short of using an in-cabin bias adjuster), and so for me performing a retrofit like this would not be a useful undertaking.

Absolutely correct. Brembo seems to be using a new optioned rotor as well for the F8X kits. Are they offering 2 sizes like seen on the E9X platforms?

[MasterP]

Yup. They offer two rotor sizes. Ones that 18's will still work, and ones that require 19's.

[IND-Distribution]

Originally Posted by Exclusivs

Absolutely correct. Brembo seems to be using a new optioned rotor as well for the F8X kits. Are they offering 2 sizes like seen on the E9X platforms?

There is a 380mm and 405mm front disc diameter. The Type III disc is available, with it's exciting slot pattern.

[LazaKamikaza]

Does anybody know if the same is valid for the AP kits from the E9x?
(What I mean is will the AP BBK fit on F8X M3/4)

Kind Regards