06 Toyota matrix, went with the powerstop evolution kit, coated rotors
Old rotor
New rotor
Old and new pad difference
Old rotor
New rotor
Old and new pad difference
Replaced front brakes rotors
- Thread starter barkingspider
- Start date
Those rotors are awesome! The Geomet coating lasts a few years on the east coast 
I can't speak for the rotors, but I've put the Z23 Evolution brakes on the front of both of my cars, and I am very happy with them. Great stopping power, quiet, and no apparent dust. They will be my go to brake pads for now.
Chinamet*Those rotors are awesome! The Geomet coating lasts a few years on the east coast
Nope, not here. Powerstop actually does use real Geomet
They have a hologram sticker that says Genuine Geomet on it, and their product description says Genuine Geomet 360 with the circled R and TM trademarks, too.
Very hard to believe…Nope, not here. Powerstop actually does use real Geomet
They have a hologram sticker that says Genuine Geomet on it, and their product description says Genuine Geomet 360 with the circled R and TM trademarks, too.
the clearly state Genuine Geomet 360 several times. There is a difference between marketing terms and actually using a registered trademark
If you really think they're not actually using real Geomet despite using the name and trademark, contact NOF and report them
If NOF has a case, and the Powerstop does not use Genuine Geomet 360 as claimed, they can sue Powerstop for using the name and trademark without a license. If NOF successfully sues and gets a lot of money, they might give you a reward. If they give you a reward, you owe me some of it for giving you the idea
I know there are plenty of imitations, but Powerstop seems to actually be real Geomet. There are 63 licensed applicators in China alone
- Joined
- Jul 22, 2022
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Z23, you mean drilled and slotted with the ceramic pads? The drilled holes fill up with rust, at least in the north where I am which makes them rough and noisy. Need a small round file to clean them out. Got them for a great price but never ever again.
My E350 does have drilled rotors. But I have had absolutely zero issues with brake dust from the Z23 ceramic pads, filling up the holes.
I have read others claiming that their drilled rotors fill up with brake dust, but those claims made no relationship to ceramic pads. Perhaps they didn't relate the two factors? IDK.
No worry, though, even if the slots/holes did fill up with brake dust. For those of us that don't track our cars, drilled/slotted brake rotors serve no purpose other than looking cool. Oh, I guess that isn't 100% true. They also give the rotor manufacturers and supply chain an extra profit margin.
- Joined
- Jul 22, 2022
- Messages
- 526
I agree partially but for those who live in the mountains or very hilly areas, drilled and slotted might help keeping the brakes cooler. My problem is not brake dust, unless brake dust is rust colored. At the beginning I bedded them in properly and they felt great. Now they're rough feeling and noisy when I apply the brakes at anything over 50 mph (not warped). The vented part of the rotors aren't too rusty. I'll clean the drilled holes with a file, blow them out with air and then brake cleaner. It will hopefully improve. Thanks.My E350 does have drilled rotors. But I have had absolutely zero issues with brake dust from the Z23 ceramic pads, filling up the holes.
I have read others claiming that their drilled rotors fill up with brake dust, but those claims made no relationship to ceramic pads. Perhaps they didn't relate the two factors? IDK.
No worry, though, even if the slots/holes did fill up with brake dust. For those of us that don't track our cars, drilled/slotted brake rotors serve no purpose other than looking cool. Oh, I guess that isn't 100% true. They also give the rotor manufacturers and supply chain an extra profit margin.
