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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > Aliexpress big brake kits (NOW WITH PICS)



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      04-21-2021, 03:55 AM   #155
Steve Sas
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See my post on these brakes. Unless you are tracking the car these brakes are not required. Good only for looks on a road car.

If you want to improve braking install 335i brakes. For a few 100 dollars you will have a noticeable improvement.

If you need for track evens get the 370mm or 380mm rotors as these will help to dissipate heat. You will need M3 master cylinder as well in this case.
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      07-31-2021, 11:18 PM   #156
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Finally on, everything fit great and was pretty straightforward
About to pull the trigger for the same kit. Do you have any issues with it so far? How's the brake dust from their pad? Any leaking brake fluid? Thanks
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      08-01-2021, 10:53 AM   #157
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A few problems with these china kits.

Bleed nipples all leaked. I think mismatch with tapered angle of machining and nipple itself. No leaks from pistons.

One of the rear calipers has misaligned pads. off by 3mm.
The rear pads have tapered friction material which causes rocks to get stuck in them and scores the rotors.

Rear braided brake lines wrong size.

Lots of dust like the original brakes.

Aren't the brakes on your car 4 pot fixed calipers?
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      08-01-2021, 11:37 PM   #158
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About to pull the trigger for the same kit. Do you have any issues with it so far? How's the brake dust from their pad? Any leaking brake fluid? Thanks
No issues at all with my front set. Brake dust is pretty much the same as normal brakes
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      08-02-2021, 12:40 AM   #159
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Fronts are fine on my car as well.
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      08-02-2021, 12:43 AM   #160
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Quote:
Originally Posted by Steve Sas View Post
A few problems with these china kits.

Bleed nipples all leaked. I think mismatch with tapered angle of machining and nipple itself. No leaks from pistons.

One of the rear calipers has misaligned pads. off by 3mm.
The rear pads have tapered friction material which causes rocks to get stuck in them and scores the rotors.

Rear braided brake lines wrong size.

Lots of dust like the original brakes.

Aren't the brakes on your car 4 pot fixed calipers?
Quote:
Originally Posted by Steve Sas View Post
A few problems with these china kits.

Bleed nipples all leaked. I think mismatch with tapered angle of machining and nipple itself. No leaks from pistons.

One of the rear calipers has misaligned pads. off by 3mm.
The rear pads have tapered friction material which causes rocks to get stuck in them and scores the rotors.

Rear braided brake lines wrong size.

Lots of dust like the original brakes.

Aren't the brakes on your car 4 pot fixed calipers?
Oh jeez, that's a tons of pain in the ass. Has to change all the bleed nipples and all the pads, since the amount of brake dust from oem pads are unbearable. Have you have to fix all these problems?
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      08-02-2021, 01:42 AM   #161
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Not 100% sure on nipples leaking issue but seen other people with these brakes have same issue. Very small leak more of a weep. The nipples were zinc coated and not stainless. I just polished them and put back. Leaks stopped.

The pads up front are ok. The rears i just left. Only small scratches, no big deal.

Be careful when buying from aliexpress as any issues with fitment and quality are always your fault not theirs. Expect no warranty. The person you will deal with is most likely a sales clerk who speaks English. She has no idea about brakes.

I required custom brackets as i kept original rotors so it made things more difficult.

Hope this helps.
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      08-02-2021, 01:53 AM   #162
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I think on your car you don't need to replace master cylinder and just need to code for larger brake kit.

Your brake on the 435i look fine. I wouldn't bother upgrading.
The older e92 brakes don't look the best hence why some people upgrade.

Don't expect braking performance unless you track car and go 370mm rotors or larger for heat reasons
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      08-06-2021, 10:21 AM   #163
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Quote:
Originally Posted by Steve Sas View Post
I think on your car you don't need to replace master cylinder and just need to code for larger brake kit.

Your brake on the 435i look fine. I wouldn't bother upgrading.
The older e92 brakes don't look the best hence why some people upgrade.

Don't expect braking performance unless you track car and go 370mm rotors or larger for heat reasons
I appreciate your feedbacks. My car does have brembo 4 piston on the front but wanting something more distinguish looking.

I think the only thing hold me back right now is that I don't know which ceramic pads I should get to minimize brake dust, maybe seller offer that option too?
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      08-07-2021, 01:38 AM   #164
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Your best to get complete kit, Rotors and calipers.

IF you do purchase make sure brake lines are correct for rear. See Zero to 60 vids on Youtude. Also get then to supply touch up paint in small bottle.

I got custom pads so i can't order different type locally.

The standard pads you will get are Ferodo ones for the Brembo GT4/6. You should be able to get different type pads to suit as china go by Brembo standards.

Remember these are cheap brakes. You should be paying around $2k USD delivered. Don't believe the BS that this and that is extra $$.

What I can say is they look great on my car compared to the originals.
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