Are these OEM Brake Disks? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

carma143 · 02-06-2015, 07:19 PM

So while me and my friend were having a good ol' debate whose BRZ was better (after a passerby commented on my car and not his yet again

) I noticed that the brake discs on my BRZ were grooved. I took a look at his to find that they were not grooved or drilled.

He swears that the grooved discs are OEM on manual BRZs (he has an automatic). I'm not so sure.

I bought mine used by the way.

mav1178 · 02-06-2015, 07:29 PM

Your OEM Subaru rotors are vented discs, nothing else.

Slotted are aftermarket for such a low-end car.

-alex

tahdizzle · 02-06-2015, 07:29 PM

pic doesn't work for me :P but what mav said

Tcoat · 02-06-2015, 08:13 PM

Not only are they aftermarket they are crappy aftermarket by what I can see in the pic.

Calidrifter · 02-06-2015, 08:40 PM

and they are probably killing your pads

carma143 · 02-07-2015, 12:31 AM

Quote:

Originally Posted by Tcoat

Not only are they aftermarket they are crappy aftermarket by what I can see in the pic.

Why do they look crappy? Is it because of the rust or that they aren't large enough?

Edit: I have yet to find any noticeable brake pad dust, although so far it has only been a daily.

Tcoat · 02-07-2015, 12:47 AM

Like I said from what I can see in the picture (reality may be different) the slots look poorly machined, the hat looks like it had a coating on it but is rusting already (unless that is just brake dust over the coating) and there is quite a bit of wear already on the face. How many miles on your car?
The size looks about right.

carma143 · 02-07-2015, 12:50 AM

Quote:

Originally Posted by Tcoat

Like I said from what I can see in the picture (reality may be different) the slots look poorly machined, the hat looks like it had a coating on it but is rusting already (unless that is just brake dust over the coating) and there is quite a bit of wear already on the face. How many miles on your car?
The size looks about right.

I've put alot of miles on it. The mileage is around 55k. Would cleaning it with some sort of micro-fiber benefit it in any way or just hurt it?

Tcoat · 02-07-2015, 12:54 AM

Quote:

Originally Posted by carma143

I've put alot of miles on it. The mileage is around 55k.

OK that makes a difference!
The wear is about right and the rust is probably just dust.
I should have asked mileage before I worried you, sorry!
Where I work we make over a million rotors a year so I have seen a few.

Tcoat · 02-07-2015, 12:55 AM

If you want to just clean them up a good wire brush is all you need. Won't make them better or worse they would just look nicer.

N1rve · 02-07-2015, 01:36 AM

They are not OEM.

dnieves · 02-07-2015, 10:59 AM

Quote:

Originally Posted by Tcoat

If you want to just clean them up a good wire brush is all you need. Won't make them better or worse they would just look nicer.

Maybe a thin layer of high temp clear or black on the non friction/wear surface to keep it neat?

Tcoat · 02-07-2015, 11:12 AM

Quote:

Originally Posted by dnieves

Maybe a thin layer of high temp clear or black on the non friction/wear surface to keep it neat?

Yep. Although the coatings we use are not actually "paint" but more paint "like" some good high temp paint on the hat would work fine. Don't paint the wheel or hub mount faces though as pail can bake in glue them right on.

dnieves · 02-08-2015, 11:13 AM

Quote:

Originally Posted by Tcoat

Yep. Although the coatings we use are not actually "paint" but more paint "like" some good high temp paint on the hat would work fine. Don't paint the wheel or hub mount faces though as pail can bake in glue them right on.

How about high temp paint on the hat and on the wheel mating surface a good cleaning and a thin layer of anti seize?

02-06-2015, 07:19 PM	#1
carma143 Senior Member Join Date: Jan 2014 Drives: Toyota Highlander; Subaru BRZ (SWP) Location: California Posts: 431 Thanks: 137 Thanked 156 Times in 95 Posts Mentioned: 1 Post(s) Tagged: 2 Thread(s)	Are these OEM Brake Disks? So while me and my friend were having a good ol' debate whose BRZ was better (after a passerby commented on my car and not his yet again ) I noticed that the brake discs on my BRZ were grooved. I took a look at his to find that they were not grooved or drilled. He swears that the grooved discs are OEM on manual BRZs (he has an automatic). I'm not so sure. I bought mine used by the way.

02-06-2015, 08:13 PM	#4
Tcoat Senior Member Join Date: Jul 2014 Drives: 2020 Hakone Location: London, Ont Posts: 69,845 Thanks: 61,656 Thanked 108,284 Times in 46,456 Posts Mentioned: 2495 Post(s) Tagged: 50 Thread(s)	Not only are they aftermarket they are crappy aftermarket by what I can see in the pic. __________________ Racecar spelled backwards is Racecar, because Racecar.

02-07-2015, 12:47 AM	#7
Tcoat Senior Member Join Date: Jul 2014 Drives: 2020 Hakone Location: London, Ont Posts: 69,845 Thanks: 61,656 Thanked 108,284 Times in 46,456 Posts Mentioned: 2495 Post(s) Tagged: 50 Thread(s)	Like I said from what I can see in the picture (reality may be different) the slots look poorly machined, the hat looks like it had a coating on it but is rusting already (unless that is just brake dust over the coating) and there is quite a bit of wear already on the face. How many miles on your car? The size looks about right. __________________ Racecar spelled backwards is Racecar, because Racecar.

02-07-2015, 12:55 AM	#10
Tcoat Senior Member Join Date: Jul 2014 Drives: 2020 Hakone Location: London, Ont Posts: 69,845 Thanks: 61,656 Thanked 108,284 Times in 46,456 Posts Mentioned: 2495 Post(s) Tagged: 50 Thread(s)	If you want to just clean them up a good wire brush is all you need. Won't make them better or worse they would just look nicer. __________________ Racecar spelled backwards is Racecar, because Racecar.

02-07-2015, 01:36 AM	#11
N1rve Senior Member Join Date: Oct 2013 Drives: 2019 BMW ///M4 Location: Los Angeles, CA Posts: 2,332 Thanks: 102 Thanked 1,167 Times in 714 Posts Mentioned: 28 Post(s) Tagged: 0 Thread(s)	They are not OEM. __________________ N1rve 2019 BMW ///M4 - Alpine White \| Sakhir Orange/Black Leather \| M-DCT \| Executive Package \| 19" Black 437M Wheels \| Carbon Fiber Trim \| Sunroof \| Active Blind Spot \| Heated Steering Wheel \| Adaptive M Suspension

02-06-2015, 07:29 PM	#2
mav1178 Senior Member Join Date: Apr 2013 Drives: 2005 Toyota Camry Location: 91745 Posts: 6,562 Thanks: 493 Thanked 6,093 Times in 3,029 Posts Mentioned: 95 Post(s) Tagged: 3 Thread(s)	Your OEM Subaru rotors are vented discs, nothing else. Slotted are aftermarket for such a low-end car. -alex

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