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That was me, more.... :-( (archive)

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Posted by DaveZ on November 06, 2000 at 12:33:49:

In Reply to: Rotor warping by aftermarket pads??? posted by BimmerMZ3 on November 06, 2000 at 12:17:05:

The answer is yes and no. The facts are that I did put EBC GreenStuff pads on my 2.3 back in April and loved them. No brake dust, great stopping power, etc. The facts are also that towards Labor Day time, I was noticing the awful feeling of warped rotors. So, was it the GreenStuffs, did I drive through a deep puddle with hot brakes, did I accidently wash my wheels after coming back from aggressive driving? Honestly, I can't say what the cause was, but the dealer did not hesitate to immediately notice the aftermarket pads and disallow the rotors under warranty. Personally, both I and HMS have a hard time believing it was the pads themselves, although they do have a higher coefficient of friction and make it possible to brake more aggressively. So, I have replaced the Greens with Reds all around, which are semi-metallic. The definitely dust more than the Greens and they seem to need to warm up a bit before they become "grabby". I also replaced my front rotors with cryo-treated rotors from HMS. I'm very happy, but am still thinking about maybe switching the Greens back on. I'm not a track driver, just aggressive street use and I'm wondering how the Reds will really do once the cold NE weather hits.

PS: If anyone wants a set of slightly warped front rotors, make me an offer that includes shipping! Otherwise, they are going to the recycle bin.

For some reason, I remember someone posting a situation where they changed their BMW pads to Green Stuff pads and their rotors began warping after about 6 months. BMW did not cover the warped rotors due to the aftermarket pads. Is this true? Thanks.

Brian Burns
00 MZ3 Silver, Black, Black

I think this is a problem with all European sourced cars. and further thought that this was due to the not being able to use Asbestos in brakes anymore.

The good news is that the pad should last nearly as long as the old brake pads.

The real anwser is however (as already stated) to move to Green Stuff. Little dust and better braking.

I would have thought US cars have the same brake pads made out of the same material as European cars on the assumption that you can't use asbestos either and why go to the expense of Kevlar or ordinary cars?

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