Thanks for that info, got any part numbers you can share? That would be spectacular not to have to guess.

Yeah, I left off pads and rotors, figuring that was all subjective really.

Tie bar is Subaru part number 26261FE000 (2 required, left and right are identical)
I used Goodridge brake lines specific to Brembo models, which is Goodridge part number 28007

Thanks, any other tips I should know prior? What about rear backing plates?

I'm in the process of doing the swap myself.

If you look at the video here (about 20 min mark) the rear plate can be manipulated to accommodate the Brembo caliper. Otherwise source new.

https://www.youtube.com/watch?v=YVsrYVEgFXQ

Is the repair kit needed if you're ordering the calipers new or is it just for maintenance?

Chiming in here to say I've recently had the following installed on my 2018 BRZ w/ Brembo:

EBC BSD1056 (front rotors)
EBC DP51210NDX (front pads)
EBC DP51537NDX (rear pads)

EBC does not currently make any rear rotors that will fit the car (verified by EBC themselves). I tried the BSD1057, and although the diameter, thickness, bolt pattern are correct, the "height" of the hat is such that the inside face of the rotor interferes with parts with the dust shield.

I saw this Brembo on sale, but noticed that the piston size is different, AFAIK the PP Brembo use the same size 40mm piston?

https://i.ebayimg.com/images/g/DMsAA...jZt/s-l500.jpg

Yes, the factory Brembos for the twins are 40mm for all pistons on the front calliper.

That said, FWIW, a lot of aftermarket Brembo kits for these cars are using 38mm & 40mm stagger, with some shops claiming this is even more ideal. Whether it's truly more ideal or not, I'm not qualified to say, but it would seem that even if it isn't more ideal, it shouldn't be much worse than the factory setup.

Brembo and AP Racing aftermarket BBK use staggered pistons to prevent pad tapering.

Thanks for all the great info.

I’m wondering if anyone has an idea of when the original rotors should be replaced, at what thickness?

Have to do my pads and wonder if rotors need service too.

Thx.


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I just remember it’s 1mm thickness difference between when it’s officially recommended to replace the rotors vs new.

I forgot the specific number…28mm is what I wanna say off the top of my head but don’t quote me on that…I will check later today

They have it written on the hats :)
It's 28 mm for the fronts and 18 mm for the rear if I recall correctly.

You guys are amazing. Thx!
And no one roasted me.


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I bought BSD rotors (1056 for the front and 1057 for the back) for my 2018 GT86 (with Brembo brakes) recently, and can unfortunately confirm that the rears rub against the dust cover when installed. Pretty disappointing.

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Has anyone measured a rear PP piston? Subaru/Toyota part numbers seem to indicate that maybe the front and rear pistons are the exact same part?

Definitely same OD, as the seals are identical.
I believe the pistons are indeed the same exact part.

Beautiful. I bought reman'd 2017 STI rear calipers, I think they are the exact same thing as a PP rear but I will measure when they get here.

Certainly a lot cheaper way to get PP rear brakes.

I should note that PowerStop has four other brake pad lines available for the PP Brembos in addition to the Z23's and Z26's already listed. Here's all their pad lines in order of (supposed) performance / aggressiveness from OEM replacement to "Stage 2 Track Day", with links to their product pages:

• Z16 Evolution Ceramic - 16-1001 front / 16-961 rear
• Z17 Evolution Plus Ceramic - 17-1001 front / 17-961 rear
• Z23 Evolution Sport Carbon Fiber - Z23-1001 front / Z23-961 rear
• Z26 Extreme Street Performance Carbon Fiber / Ceramic - Z26-1001 front / Z26-961 rear
• Track Day Carbon / Metallic - PST-1001 front / PST-961 rear
• Track Day Spec Metallic - PSA-961 (rear only)

PowerStop also has one line of rotors:

• Evolution Drilled, Slotted and Zinc-Plated rotors - JBR1179XPR front / JBR1795XPR rear

In addition to the Centric rotors already listed on the first post, they also have:

• Cryo-treated high-carbon front rotors - 125.47019CRY front
• Stoptech slotted rotors - 126.47019SL front left / 126.47019SR front right / 126.47043SL rear left / 126.47043SR rear right
• Stoptech slotted cryo-treated rotors - 126.47019CSL front left / 126.47019CSR front right / 126.47043CSL rear left / 126.47043CSR rear right
• Stoptech drilled and slotted rotors - 127.47109L front left / 127.47019R front right / 127.47043L rear left / 127.47043R rear right
• Stoptech drilled and slotted and cryo-treated rotors - 127.47109CL front left / 127.47109CR front right / 127.47043CL rear left / 127.47043CR rear right
• Stoptech drilled rotors - 128.47019L front left / 128.47019R front right / 128.47043L rear left / 128.47043R rear right
• Stoptech Select drilled and slotted rotors - 227.47019L front left / 227.47019R front right

Information on all the Centric brake components available for our cars (including non-PP stuff) can be found here.

I have a set of the Z23 pads I'm going to swap on for the street to replace the dusty stockers along with some new Centric blank rotors, and I picked up a set of the Track Day pads (front and rear) for my upcoming HPDE track weekend.

Are the rattle clips required?

Are the front tie bars actually required? I noticed the STI doesn't run them and instead uses a shorter front bolt caliper bolt, I somehow hadn't realized that they weren't a bracket or a spacer until I was putting the front together.

https://i.imgur.com/wLxSbVm.jpg
https://i.imgur.com/el8C0wY.jpg

FWIW, STI rear calipers are a substitute for the PP rear caliper. You can get them significantly cheaper.

FWIW, I think some folks have fitted the PP Brembo brakes on the 2nd gen aluminum knuckles without them using the STI bolts because they don't fit with them. I think the feedback was just that they were noisy without them...?

Alright, that kind confirms what I was thinking. Easy way to save a few pounds of unsprung weight. Thank you!

Maybe even a little more if you swap in some 2nd gen aluminum knuckles...but that ain't cheap. ;)

Would if I could, series rules and all. I pulled off a Stoptech 355mm / 345mm kit for the PP. :)

BRZ PP brakes? No points
2nd gen knuckle? Illegal because they didn't come on first gen :bonk:

FYI - I just received confirmation from Centric that the performance high-carbon "replacement" rotors for the PP packaged have been discontinued. I ordered them like 6 months and they were still listed on their website/distributor sites as available, but out of stock. Turns out they were actually discontinued.

Part numbers 125.47019 & 125.47043

They do have the C-Tek "standard" rotors available still. Part numbers 121.47019 & 121.47043.

What has your experience been with this setup? I went the same route (BSD rotors up front, kept stock rotors at the rear) but with Yellowstuff pads. After nine months, less than 3,000 miles and three or four track days, the front pads are basically worn down to the point of having to be replaced. Rear pads still have plenty of life left. My OEM setup up front lasted MUCH longer.

I'm wondering if the mismatch in rotors cause brake bias to shift forward which wears the front pads down faster.

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Seems that the BSD 7839 rotors are the right ones. Same dimensions as 1057, but 4mm lower height (64mm vs 68mm), which is the same as the stock Brembos.

Now: BSD 7839 rotors seem very hard to find. Can anyone perhaps point me to a source?

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What is the recommended slotted rotors for the PP Brembos?

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Stoptech has the 126.47019SL/SR (left / right front) and 126.47043SL/SR (left / right rear) which I've used in the past on another vehicle, but I found they tended to accumulate pad material in the slots which had to be cleaned out regularly or it would negatively affect pedal feel, noise and braking performance. I had heard they were getting hard to find, but both CSG and Summit Racing list them as in-stock currently. EDIT: I updated my previous post (several above this one) with the current part numbers from Stoptech / Centric's website. They added a number of rear applications since I created the original post, and another variant - "Stoptech Select" drilled and slotted rotors.

I'm currently running the PowerStop Evolution drilled and slotted rotors in the rear only. No issues so far. They don't seem to have the same build-up issue as the Stoptechs, and they were about half the price. They're also sold in axle sets, rather than individually, which makes ordering a little simpler. I bought them from Rock Auto, and will likely end up getting them for the front as well. Part #'s are JBR1179XPR for the front set and JBR1795XPR for the rear set.

I emailed Centric and they said that both the front and rear high carbon rotors are still available and in stock.
Front: 125.47019
Rear: 125.47043