[Anthony235]

Originally Posted by rwalker

The OEM rotors are 2-piece: they have an aluminum hat and a steel disc...

I think the relative lack of BBK offerings for these cars reflects how good the stock system is.

I'm pretty sure that anything that fits on an E9x will fit on our cars, too. The reason I think so is that I've seen a couple of posts where people are retro-fitting the F30 front M Perf bits (370mm rotors and calipers) to their E90s.

Two materials does not mean 2-piece rotors.

We do not have 2-piece rotors.

Should be some on the market by year end.

[Taunto]

Just Buy this Kit so the rest of us can drool over it :P

[Pparana]

The oem rotors are 2 piece, just not replaceable. Hence the rivets.

[allthatisntnow]

I was always under the impression they used cast-iron for the actual rotor? Much better thermal handling than steel? Pretty sure i read even BMW say the M brakes are a cast iron rotor with aluminium hat - just riveted as previously stated.

[abirmaher]

Originally Posted by Taunto

Just Buy this Kit so the rest of us can drool over it :P

Ive been drooling over them too... but so expensive...

[Taunto]

Originally Posted by abirmaher

Ive been drooling over them too... but so expensive...

Banks have lots of money

[abirmaher]

Originally Posted by Taunto

Banks have lots of money

If anyone is willing to donate to the cause ill gladly set up a gofundme! Haha

[LanceM26]

Originally Posted by Bee Pee

Yes - I diy'd f3x m sport blue 370mm calipers, mppk rotor F&R, HEL ss lines, m4 sport pads F and mpbbk rear pads and dot 5.1 BF.

Car was coded by dealer and this improved the feel at the top of the pedal. Initially, prior to coding, pedal feel was a bit too binary and now it's very easy to modulate.

Brakes are good to start with and as mentioned already, ss lines and pads on standard will be an improvement.

The big dinner plates behind my 18" wheels do look very very nice though !

Do you know what they coded? I am installing the 380mm rotors from the m3 using the stock calipers + offset brackets.

[Bee Pee]

Originally Posted by LanceM26

Do you know what they coded? I am installing the 380mm rotors from the m3 using the stock calipers + offset brackets.

Hi I think they coded F2x 2NH mpbbk option

[230iZTR]

Ive upgrades to Paragon 2-piece rotors front and rear, stock diameter and width, direct replacement. Cast iron rotors with forged titanium centers. Saves around 3lbs per corner, should have higher thermal capacity, and discs should be about the same cost as an OE rotor job after the initial investment.

Before & After:



Also pictured lurking underneath are EBC Yellow pads