Brembo 4 pot big brake kit (360mm) - Front [Freaky Parts]

[smokinjoe64]

Originally Posted by DjMarkOne

blah, that sucks. this is another option that's floating around: https://www.m3post.com/forums/showpo...&postcount=313

not sure about pad sweep tho, but hopefully someone can chime in on this part

Not a fan of 'rebuilt', used brakes sets from 3rd parties other than actual original or trusted AM manufacturers/resources.

• Too much risk - Fitment, failures, performance etc.
• Possible accident damage 'unseen'/unknown
• Engineered for different platform [i.e. stress, loads, etc]

> Example of what's possible after spending substantial dollars:

[shimmy23]

Originally Posted by smokinjoe64

Not a fan of 'rebuilt', used brakes sets from 3rd parties other than actual original or trusted AM manufacturers/resources.

This 4pot brembo kit you're interested in is rebuilt. At least thats how i remember it.

[smokinjoe64]

Originally Posted by shimmy23

This 4pot brembo kit you're interested in is rebuilt. At least thats how i remember it.

At least not according to FP website descriptions [see below].
Regardless, they're a no-go for me w/o matched rears.

"This kit comprises of:
1 pair of brand new red 4 pot Brembo Calipers
1 set of pads
1 pair of custom fabricated brackets with bolts and fixings
1 pair of custom HEL braided hoses
1 set of pad pins and spring clips"

[Throatpunch]

Rebuilding calipers is common on track cars- I don't see an issue with that

[smokinjoe64]

Originally Posted by Throatpunch

Rebuilding calipers is common on track cars- I don't see an issue with that

Completely agree...thas a known quantity.

My concerns are purchasing sets that may be from accident damage, abuse.

Calipers may not be 'square', torqued, cracks...anything unknown or 'painted over'.
It's certainly happened from 3rd party 'brokers'; visual inspection not always enough.

[m3boost]

Originally Posted by smokinjoe64

Not a fan of 'rebuilt', used brakes sets from 3rd parties other than actual original or trusted AM manufacturers/resources.

• Too much risk - Fitment, failures, performance etc.
• Possible accident damage 'unseen'/unknown
• Engineered for different platform [i.e. stress, loads, etc]

> Example of what's possible after spending substantial dollars:

Still run this kit to this day, Update: fixed my issues using oem brembo pads and these brakes are the best.

[smokinjoe64]

Originally Posted by m3boost

Still run this kit to this day, Update: fixed my issues using oem brembo pads and these brakes are the best.

m3boost - Specifically referencing the FP Front Brembo set noted from this post or 'something else'?
If not the FP set, what's the point to the comment? Stated previously:

"My concerns are purchasing sets that may be from accident damage, abuse.
Calipers may not be 'square', torqued, cracks...anything unknown or 'painted over'.
It's certainly happened from 3rd party 'brokers'; visual inspection not always enough."

Again, not critical of the FP new Brembo kit offering as posted.
Believe a plausible alternative to +$2,500 front BBK kits...BBK kinda unnecessary for non-trackers.

> Only regret, FP cannot supply a matched Bremo rear set. If a matched set available, would purchase with a grin..that plain and simple.

[DRLane]

For what it's worth, I gave FP a deposit back in 2019 to develop the rear matching kit. They were great about returning the deposit, but I waited for several months before calling it quits. Then I started tracking my car and wanted a real BBK and got a full ST60/40 set used for $4k.

I'd strongly recommend folks that want to improve their braking system whether for aesthetics or performance to consider a proper purpose built system.

I sold that ST60/40 kit for $2.5-$3k (couldn't find the thread to be sure), after 2 seasons of heavy tracking. Spend your money wisely!

[smokinjoe64]

Originally Posted by DRLane

For what it's worth, I gave FP a deposit back in 2019 to develop the rear matching kit. They were great about returning the deposit, but I waited for several months before calling it quits. Then I started tracking my car and wanted a real BBK and got a full ST60/40 set used for $4k.

I'd strongly recommend folks that want to improve their braking system whether for aesthetics or performance to consider a proper purpose built system.

I sold that ST60/40 kit for $2.5-$3k (couldn't find the thread to be sure), after 2 seasons of heavy tracking. Spend your money wisely!

Absolutely concur on all points

[nycplumber]

What was wrong with st60/40 for track?

[DRLane]

Originally Posted by nycplumber

What was wrong with st60/40 for track?

Nothing, great kit! Just moved to AP Radicals for the endurance pads.

[nicke_1]

Regarding the Brembo 4-pots:
I did not buy the calipers or adapters from FP. My calipers come from a Renault Megane RS III with 4x40mm pistons.

I've been tracking my M3 E92 with the Brembo for two years. No complaints at all. Paired them with the stock 360x30mm disc, steel braided hoses, Pagid RS29 pads, brake cooling backing plates from Pure Tech Sweden with air directed from the GT4 replica c/f lip. Motul RBF600 brake fluid.

The sweep area for the pads on the 360x30mm disc is almost perfect - the edge of the pad is at the edge of the disc. The friction material of the pads does not cover the whole of the disc on the inner side of the disc (towards the center of the disc/hub), so expect some lip/unused space on the disc there. In the rear I've been using the stock calipers paired with Pagid RS29 pads, stock discs and steel braided hoses. Brake balance has been fine IMHO (OEM brake master cylinder).

This winter I decided to do an overhaul of the calipers. But, instead of buying new dust boots and sealing rings I found that mister-auto in Europe had refurbished calipers for only $161 each, including shipping within Europe and deposition for the old calipers!
https://www.mister-auto.se/erbjudand.../snra/1284219/
https://www.mister-auto.se/erbjudand.../snra/1284220/

(Search on e.g. 1284219 - the caliper is available under the mister-auto.fr mister-auto.ie and other domains as well)

The calipers came newly painted (silver), the Brembo logo on the side was removed. They had also refurbished the calipers with new pistons, seals, dust boots and bleeding screws.

Bad idea... three of the pistons in the left caliper was sized... Took it apart and noticed that the inside walls of the calipers were the pistons run was in bad shape. The new pistons were seized and heavily scored due to the roughness of the inside walls... Was pressed on time so ordered a new one while getting the return sorted out. This time the pistons was ok - tested them with compressed air on the bench. Brushed off most of the silver paint, spray painted them red with 300C/572F spray paint, baked it in the oven at 160C/320F for 30min, ordered "high temp"(?!) "///M Power" stickers from eBay, covered with a couple of 800C/1472F clear coat layers and baked it in the oven once again.

Took the car for the first track event of the year. Cold but dry and sunny weather - 12C/53F. Went out on the track for a short test session. Came back to the pit after some cool-down laps and the paint had started to bubble... Guess that the silver paint the calipers came with was not proper high temp and that I should have tried to remove even more of it before doing my "pimping"! Continued tracking throughout the day. When I picked up the pace and started braking later/harder, I noticed that the brakes were seizing - felt like the DSC was regulating even though the DSC was switched off -scary! Back to the pits I lifted up the car and noticed that the pads was dragging when trying to rotate the wheel by hand. The rubber caps of the bleeding screws were totally melted...

Summary:
The old Brembo calipers I have performed great, the "new" (refurbished) Brembo did not. The "new" calipers did, in my case, not meet the demands of a track day. The pimping of the calipers was a bummer, but nothing more than that - my fault, should have filed more of the silver paint off. At the same time, one would expect that the paint applied by mister-auto would stand some heat. I have not taken the caliper apart yet but expect the sealing rings to be toast. The dust boots are melted.

Take-away of this story: (Please note that my "misshaps" does not have anything to do with Freaky Parts - My "new" calipers were sourced from mister-auto.) Freaky Parts state that their Brembo-kit ships with new set of Brembo Calipers – great option judging from my experience. If buying refurbished calipers, like I did, see to it that the parts are up to the job. In my case I should have serviced the "new" Brembo calipers with Brembo parts.

Here is a good source for dust boots and sealing rings with proper Brembo original parts:
https://www.racing-professionals.de/...ery=20.4872.46

Regarding the AP Racing calipers:
I've been using the 6-pot kit CP5575-1004 (CP5575-802S4 + CP5575-803S4 calipers, AP-Racing 356x32mm floating disc, Pagid RS29 pads etc.) on my M3 E46 for almost ten years. Paired it with the AP Racing rear kit: CP5144-1003. It's been working flawlessly. After two years of intense tracking on the Nürburgring, Spa Francorchamps, Swedish as well as Finnish tracks I decided to refurbish the scrapers (no dust boots on CP5575) and seals of the calipers. Totally unnecessary - they did not show ANY wear at all, but a nice "peace-of-mind" feeling, knowing that the parts were of great quality and tolerances was over my braking requirements! Running an over-dimensioned brake kit for your track car is very comforting when you try to push your lap-times - you know that they will stop the car. Every time. Period.

So, given the experience with I had with the Brembo calipers from mister-auto on my M3 E92 I could go for the old Brembo's, fit them with new seals and dust boots from racing-professionals.de or go for the setup that I know worked well for my previous track car (now sold). Wanted to go for a whole AP Racing kit, but prices for them have been going up the last years - I bought the whole kit to the M3 E46 for ~ $2100. Today they go for $5-6000. Placed an order for the Freaky Parts kit, consisting of the AP Racing CP5575-802S4 + CP5575-803S4 calipers, braided hoses, bolts and aluminum adapter last Tuesday (26th of April) (Same day as I came home from the track day where the "new" Brembo's was toasted.). The parts were shipped from UK on the 28th. I picked them up here in Sweden one day later! Still waiting for UPS to deliver the Pagid RS29 pads from isaracing.de.

One thing to be aware of with the CP5575-80%S4 calipers is that they are designed for a 32mm (or wider) disc. The OEM disc we are running are 360x30mm. One needs to keep an extra eye on the pad wear so that the pistons does not go beyond the point that they are designed for. I talked to AP Racing tech support about this and they recommended that one should not use the pads when they are beyond 8mm of pad friction material.


My old Brembo's with Pagid RS29


Old Brembo's with Apex ARC8 18x9,5


"New" calipers from mister-auto painted with high temp color and high temp clear coat


Behind non-OEM 9x19" 359M


After the 1st track session... Notice that the rubber cap for the bleeder screw has melted.


New AP Racing CP5575-802S4 from Freaky Parts paired with OEM 360x30mm disc


AP's fitted behind BBS E88 18x10"

[Z K]

Does anyone know if the Freaky Brembo caliper kit clears the stock 219M wheels in front?

[DjMarkOne]

Looking deeper into FP’s website, they also offer an AP Racing front & rear kit (matching, but sold separately) that’s priced reasonable

[belugatex]

Found this thread as I was looking for help with if anyone with this kit has attached brake pad wear sensors. Mine has had this FP Brembo bbk since November 2019, which was about 40k miles ago. Stewart at FP was very helpful when I was hunting for replacement pads (didn't need them but was planning ahead).

But when I swapped winter->summer three weeks ago I saw the sensors taped off, which was a surprise. Previous owner said it had always been like that, but I wonder if anyone else with this kit has the wear sensors attached. Thoughts? I can start a new thread with this question if that makes more sense.

I'm down for a matching rear if FP ever gets a caliper supplier, so add me to the future/maybe never group buy.

[Z K]

I mentioned it in another brake thread but I purchased the FP brake kit. Installed it this weekend.

I plan to primarily be using the brakes on track. Prior, I tracked with stock calipers with track pads and fluid - it was working decently for 10+ years. I am hoping these perform better than the stock calipers. The brake pad coverage is larger than the stock pads and the caliper itself seems to have more surface area for cooling.

[smokinjoe64]

Originally Posted by Z K

I mentioned it in another brake thread but I purchased the FP brake kit. Installed it this weekend.

I plan to primarily be using the brakes on track. Prior, I tracked with stock calipers with track pads and fluid - it was working decently for 10+ years. I am hoping these perform better than the stock calipers. The brake pad coverage is larger than the stock pads and the caliper itself seems to have more surface area for cooling.

What did you choose for rear set-up?

[Z K]

Originally Posted by smokinjoe64

What did you choose for rear set-up?

The rear is stock calipers. I have track pads in them. I've never had a problem with rear brakes on track.

[Z K]

Here's pics of the FP kit installed on my car. Brembo calipers with Project Mu brake pads.

[Mr. C4]

Originally Posted by Z K

Here's pics of the FP kit installed on my car. Brembo calipers with Project Mu brake pads.

First of all how was the installation, straight forward/bolt on? What are your first impressions? I have the same kit but haven’t got around installing it.

[Z K]

Originally Posted by Mr. C4

First of all how was the installation, straight forward/bolt on? What are your first impressions? I have the same kit but haven’t got around installing it.

It is pretty straightforward.

They did not include any instructions. They had a few washers I had a question about. I emailed them about the washers and the bolt torque to use for the bolts. They respond very fast despite being on the other side of the globe. Otherwise the calipers only go on one way so it is not hard to figure out how it goes together.

Street driving it feels like stock which is a good complement. I am surprised how well the pads sweep the rotor - it is nearly completely covered with no pad overhang. Considering the Megane Trophy R, which this caliper comes from, has a 350mm rotor, it is very close to the M3's 360mm rotor.

I am hoping there is no brake bias difference on track. I'll update after my next track day.

[Mr. C4]

Originally Posted by Z K

It is pretty straightforward.

They did not include any instructions. They had a few washers I had a question about. I emailed them about the washers and the bolt torque to use for the bolts. They respond very fast despite being on the other side of the globe. Otherwise the calipers only go on one way so it is not hard to figure out how it goes together.

Street driving it feels like stock which is a good complement. I am surprised how well the pads sweep the rotor - it is nearly completely covered with no pad overhang. Considering the Megane Trophy R, which this caliper comes from, has a 350mm rotor, it is very close to the M3's 360mm rotor.

I am hoping there is no brake bias difference on track. I'll update after my next track day.

Hi!
I have sent an email with the exact same questions regarding washers (didn’t receive any) and torque specs but have not received any response. Do you mind sharing here or via PM?

Thanks, J.