[Jadar]

I started looking into getting rid of the ugly Bosch rear calipers. I went in on a deal with peterparker , he needed the front and I took the rear. They were super cheap $1250 from eBay for yellow M performance kit.

Why did I do this? Well simple to save money $850 and the performance is 95% the same as having the 370mm up front for street use. Why waste a good 4 piston brembo caliper because it uses a slightly smaller rotor

It took me a while to find all the info, since not many go this route so I am confirming It does work! After much controversy I found out that the M235i runs this setup from the factory. 340mm front (blue) 345mm rear (blue).

You need rotors for the rear I ordered part #34206797607

1. Painted the front calipers Phoenix yellow code 455
*i used m performance cast sticker logo on front just to add a bit of uniqueness to it.
2. Install rears, use Motove bleeder to bleed the calipers.
3. CODE the rears to appropriate size under DSC
It's c_variante_bremsscheibe_hinten_c and change from 20/330 to 24/345.

If you don't, you may end up with some pedal moosh.
I did. But after coding it went away

It works! DSC works ABS works, Launch Control works as it should. No issues at all.

Tip: if you have a 35i series car do not swap out the dust shields, they're the same size in the m performance kit. And to boot I got the wrong ones designed for a 320i/328i hub.
Plus the hub needs to come off to instal the shield appropriately. SKIP this the 345mm rotor has no issue clearing a 335 shield.

Downside is I have the M performance pads in the rear right now as it came in the kit and they do not have the same bite or "grip power" as we all know like the U.s. Spec m sport pads do.

If you want to do this, and are worried don't be. It all works as it should. It's proven and I have put in a lot of time to find all info on this otherwise I wouldn't have done it.

370mm rotors are cosmetic to me and I've read that the stoping power isn't any different then the 340mm.
The positive to the 370mm dimpled rotors is less weight and better heat dissipation IF you track the cars.

Happy Modding

[.BMW.]

Nice upgrade!

Thanks for sharing.

[Vinboyblue]

what's the part # for the brake pads (m-perf) ?

[Jadar]

Originally Posted by Vinboyblue

what's the part # for the brake pads (m-perf) ?

Rear-34216876422

https://www.turnermotorsport.com/p-3...335i-f32-435i/

[aacabriolet]

Nice!
Where did you get the sticker? And did you just simply stick it on after spraying? Or is it under the clear coat?

Thanks

[Lancelot]

Congrats!
It does look very good, if I had been more confident in my skills I'd have done the same as you - perhaps only in blue - and saved a ton of money.

But brakes isn't something I'm prepared take chances with, so went for the full M performance kit, dealer mounted.

[Jadar]

Originally Posted by aacabriolet

Nice!
Where did you get the sticker? And did you just simply stick it on after spraying? Or is it under the clear coat?

Thanks

Thank you. I bought them from an eBay vendor out of Novi Sad Serbia. Guy makes great stickers, and these are made from a very nice quality vinyl. He ships right away and I've got them in less then 10 business days.

I applied the sticker after the paint was dry, then I did 2-3 coats of high gloss clear over it all.

http://www.ebay.com/itm/201513391419?redirect=mobile

Originally Posted by Lancelot

Congrats!
It does look very good, if I had been more confident in my skills I'd have done the same as you - perhaps only in blue - and saved a ton of money.

But brakes isn't something I'm prepared take chances with, so went for the full M performance kit, dealer mounted.

Thanks I'm probably in the minority but I like the Phoenix yellow a lot especially on a blue car. I think the orange or red would have looked out of place. Plus for whatever reason the yellow M perf kit new on eBay is $1250. That's a steal. So it was a no brainier. The blue calipers would have been great and a perfect match, but the only two sets I found are used and one is $1200, and the other is $1700 on eBay.

Plus I didn't want to have to repaint a perfectly good set of rears that have factory paint finish.

I don't blame you one bit for not wanting to mess with brakes especially opening up the lines. Plus you get the warranty benefit at the dealer.

[Dmitry83]

Smart idea- perfect work!

You can use M3 rear pads (and front as well) to get both initial grip and tirelessness.

[Jadar]

Originally Posted by Dmitry83

Smart idea- perfect work!

You can use M3 rear pads (and front as well) to get both initial grip and tirelessness.

Ahhhhh that's right I forgot those are interchangeable. Thanks for the reminder.

Thanks for the compliments

[JOE YOUNG]

Nice job there. I like yellow or orange m perf. Blue is too common now. I might try to repaint it one day.

But I wonder why you didn't paint the rusty part of the front disc as well to make it all look new.

[Jadar]

Originally Posted by JOE YOUNG

Nice job there. I like yellow or orange m perf. Blue is too common now. I might try to repaint it one day.

But I wonder why you didn't paint the rusty part of the front disc as well to make it all look new.

I'm going to clean the rotor hat. It's not rust it's super dirty from brake dust. Between school and my job I haven't had time to do everything the way I want to

[Dmitry83]

Originally Posted by Dejan_

I'm going to clean the rotor hat. It's not rust it's super dirty from brake dust. Between school and my job I haven't had time to do everything the way I want to

Have you cleaned the hats already?
I used Autosol Aluminium Polish for that- amazing paste!
This post is on Russian, but you can see the pictures- no.6 & 7 show the polished hats:
https://www.drive2.ru/l/460227805792207574/

[Cammy5]

I found this thread linked in another thread I was doing some reading on and it seems it's the perfect solution to my dilemma. I confirmed through the local BMW parts dept that my 328i has the following:


Specs:
• Front: Brembo 4-piston calipers, grey/unfinished; 340mm blank brake rotors
• Rear: OEM (Bosch, Ate, etc) 1-piston calipers, grey/unfinished; 330mm blank brake rotors

So the weak point is the rear caliper really. If I purchase a set of 2 piston Brembo 335i rear calipers from Ebay (approx $200), 345mm rear blank OEM rotors ($275ish), and better pads all the way around ($300ish) I should have a budget friendly 90% version of the M Performance BBK that retails for $1700 or so on sale for the yellow kit, right?

[Jadar]

Originally Posted by Cammy5

I found this thread linked in another thread I was doing some reading on and it seems it's the perfect solution to my dilemma. I confirmed through the local BMW parts dept that my 328i has the following:


Specs:
• Front: Brembo 4-piston calipers, grey/unfinished; 340mm blank brake rotors
• Rear: OEM (Bosch, Ate, etc) 1-piston calipers, grey/unfinished; 330mm blank brake rotors

So the weak point is the rear caliper really. If I purchase a set of 2 piston Brembo 335i rear calipers from Ebay (approx $200), 345mm rear blank OEM rotors ($275ish), and better pads all the way around ($300ish) I should have a budget friendly 90% version of the M Performance BBK that retails for $1700 or so on sale for the yellow kit, right?

Yep basically you will have the exact same brakes that come stock on an M235i, is that good enough for ya?

[Cammy5]

Originally Posted by Dejan_

Yep basically you will have the exact same brakes that come stock on an M235i, is that good enough for ya?

Sweet! Now I just have to find some bona fide 2 piston Brembo rear calipers as most of the ones I'm finding on the secondary market are what I have now 1 piston.

[Jadar]

Originally Posted by Cammy5

Sweet! Now I just have to find some bona fide 2 piston Brembo rear calipers as most of the ones I'm finding on the secondary market are what I have now 1 piston.

There are a few used on eBay (blue) but over priced IMO.

I paid $500 bucks for my rear yellow with pads and sensors. You gotta find someone that needs the front set. You're tempting me to be that guy lol as I'm wanting to put bigger brakes on my wife's 228 .

[Cammy5]

Be that guy so we can split the package. lol.

[adhuang217]

Originally Posted by Jadar

I started looking into getting rid of the ugly Bosch rear calipers. I went in on a deal with peterparker , he needed the front and I took the rear. They were super cheap $1250 from eBay for yellow M performance kit.

Why did I do this? Well simple to save money $850 and the performance is 95% the same as having the 370mm up front for street use. Why waste a good 4 piston brembo caliper because it uses a slightly smaller rotor

It took me a while to find all the info, since not many go this route so I am confirming It does work! After much controversy I found out that the M235i runs this setup from the factory. 340mm front (blue) 345mm rear (blue).

You need rotors for the rear I ordered part #34206797607

1. Painted the front calipers Phoenix yellow code 455
*i used m performance cast sticker logo on front just to add a bit of uniqueness to it.
2. Install rears, use Motove bleeder to bleed the calipers.
3. CODE the rears to appropriate size under DSC
It's c_variante_bremsscheibe_hinten_c and change from 20/330 to 24/345.

If you don't, you may end up with some pedal moosh.
I did. But after coding it went away

It works! DSC works ABS works, Launch Control works as it should. No issues at all.

Tip: if you have a 35i series car do not swap out the dust shields, they're the same size in the m performance kit. And to boot I got the wrong ones designed for a 320i/328i hub.
Plus the hub needs to come off to instal the shield appropriately. SKIP this the 345mm rotor has no issue clearing a 335 shield.

Downside is I have the M performance pads in the rear right now as it came in the kit and they do not have the same bite or "grip power" as we all know like the U.s. Spec m sport pads do.

If you want to do this, and are worried don't be. It all works as it should. It's proven and I have put in a lot of time to find all info on this otherwise I wouldn't have done it.

370mm rotors are cosmetic to me and I've read that the stoping power isn't any different then the 340mm.
The positive to the 370mm dimpled rotors is less weight and better heat dissipation IF you track the cars.

Happy Modding

Sorry for the question but do you have more info on how I can code the rears to be bigger? Does this have to be done at a dealership? Can I do it with jb4 or Enet cable?

[Jadar]

Originally Posted by thisiswang

Sorry for the question but do you have more info on how I can code the rears to be bigger? Does this have to be done at a dealership? Can I do it with jb4 or Enet cable?

Dealership yes but they charge a lot. You need esys software and an e net cable and then VO code the brakes.
Jb4 doesn't have capability to code.

[adhuang217]

Hey thanks for that super quick answer. I have the enet cable and esys but didn't know i could code this type of stuff with it.

[adhuang217]

One more question. Can this be done on esys lite or do I need the full version?

Originally Posted by Jadar

Dealership yes but they charge a lot. You need esys software and an e net cable and then VO code the brakes.
Jb4 doesn't have capability to code.

[Jadar]

Originally Posted by thisiswang

One more question. Can this be done on esys lite or do I need the full version?

Esys lite is fine