Do you know what these are for!!?

[N55135i]

In the picture I have removed One of the 'nubs' on the performance brakes for my E82. Do they serve any purpose other than making the caliper look huge & being heavy. I'd like to remove all of them if they are unnecessary, maybe I should ask Brembo. *These calipers will be painted Sedona Red to match my car.

[Suprgnat]

Originally Posted by AHighSpeedDriver

In the picture I have removed One of the 'nubs' on the performance brakes for my E82. Do they serve any purpose other than making the caliper look huge & being heavy. I'd like to remove all of them if they are unnecessary, maybe I should ask Brembo. *These puke yellow calipers will be painted Sedona Red to match my car.

Vibration/squealing/noise. I removed mine with no ill effects. YMMV

[asbrr]

Originally Posted by Suprgnat

Vibration/squealing/noise. I removed mine with no ill effects. YMMV

Would they add any heat sink properties? Like adding mass to a rotor, and just help with overall heat management?

[N55135i]

Your comments are much appreciated. I will leave them off, weight savings & better looking caliper shape without them. Awesome photo history Suprgnat

[ShocknAwe]

I've had mine off for 5-10k miles or so. No problems.

They're a vibration damper.

[Suprgnat]

Originally Posted by asbrr

Would they add any heat sink properties? Like adding mass to a rotor, and just help with overall heat management?

Given that they're steel I would imagine they would tend to retain heat more than the aluminum caliper bodies.

[N55135i]

Update: Asked my local German mechanic, he also said vibration/noise. I'll leave em off though & find out myself, theyre easy to re-install.

[breakingpoint]

I was wondering the same thing. I saw a picture of an E46 M3 with the M performance brakes, without this bracket. It looked so good! So I came to the 1-series forum to investigate, as they're standard on the 135i. I did not like the look of the performance brakes with this nub. Would be great to see more pictures of setups like this!

[N55135i]

Here's an image of my Brembo install without the nubs. I have a few thousand miles on them now & I have not had any issues. My car is not a 135i so I can't use them to their full potential (weaker booster*). This is also why my brake pedal will always be softer too despite steel flex lines. Breaking from 200kph+ is however much more stable & shorter now on Autobahn.

[breakingpoint]

Looking good, nice idea to paint them the same color as the car!

[TM9030]

Interesting - they look so much better without that piece. Do you have any close up pictures of the caliper

[N55135i]

Closeup

[Esteban]

Originally Posted by AHighSpeedDriver

Closeup

Nice pics with the matching calipers.

Pics also show off the orange in your Sedona Red.

Looking good.

[TM9030]

Originally Posted by ShocknAwe

I've had mine off for 5-10k miles or so. No problems.

They're a vibration damper.

Just to clarify - the nubs haven't made the car feel different? Have you experienced higher noise levels or vibrations coming from your front brakes?

I'm really tempted to take mine off. Come to think of it I haven't seen those nubs on other brembos used by other manufactures. Is there a reason why?

[ShocknAwe]

Originally Posted by TM9030

Just to clarify - the nubs haven't made the car feel different? Have you experienced higher noise levels or vibrations coming from your front brakes?

I'm really tempted to take mine off. Come to think of it I haven't seen those nubs on other brembos used by other manufactures. Is there a reason why?

No problems but I'm also using different rotors and caliper brackets.

[MightyMouseTech]

Originally Posted by AHighSpeedDriver

Here's an image of my Brembo install without the nubs. I have a few thousand miles on them now & I have not had any issues. My car is not a 135i so I can't use them to their full potential because I don't have the extra brake lines to use all pistons as I understand it. This is also why my brake pedal will always be softer too despite steel flex lines. Breaking from 200kph+ is however much more stable & shorter now on Autobahn.

Extra brake lines? Uhhh, what?

[N55135i]

Originally Posted by TM9030

Just to clarify - the nubs haven't made the car feel different? Have you experienced higher noise levels or vibrations coming from your front brakes?

Update on nubby removal, still zero problems.
I did the same modification to my 135i's Brembos.