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X3 E83 (2004 - 2010)
Talk about the E83 BMW X3 in this forum!

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Old 08-07-2012, 06:52 PM
jziran jziran is offline
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Location: East Coast
Join Date: May 2005
Posts: 20
Mein Auto: 2008 X3 3.0SI
Powerstop Brakes

Long time lurker, seldom poster.

I just bought the powerstop 1 click brake kit on Amazon. The kit has drilled/slotted rotors and ceramic pads.

I know there is a lot of debate about the need/value of drilled/slotted rotors and even more so about ceramic pads.

Debate aside - Has anyone ever used this brand of rotor/pad combo? I am a little worried as BMW OEM brakes have me spoiled. Reviews on the 'internets' all point to above average ratings and some even call these the best bang for the buck. I am a little worried as most of the reviews come from the point of view of non-BMW owners (not looking down at their choices but many of the cars on the market have crappy brakes)

I have seen some BMW owners call this setup a good option - equivalent but not superior to OEM brake - with added benefits of drilled/slotted rotors and the corresponding drawbacks.

For reference - I live in NJ and do about 50 miles of driving a day with occasional heavy breaking 60mph-10mph in heavy traffic.

I purchased them based on overwhelmingly positive review - despite the reference bias I speak of above. The BMW reviewers pushed me over the top. I also get the added benefit of an enhanced look (i know, i know, don;t mock me). I am a sucker for OEM+ look.

Anyone have any experience?

http://www.powerstop.com/products (1 click brake kit)
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Old 08-08-2012, 02:32 PM
chagrin chagrin is offline
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Location: Philly suburbs
Join Date: May 2010
Posts: 102
Mein Auto: M3/X3/XI
I don't have this specific kit, but I do have these rotors installed on our X3 along with EBC brake pads front and rear. I think you will immediately notice the increased noise level. Under heavy braking, these rotors (due to the slots) make a heavy "groaning" sound. You'll see what I mean after you install them. My M3 has the European CSL brakes which are cross-drilled from the factory and they make considerably less noise since they are not slotted. I previously has cross-drilled/slotted rotors on the M3 and they were quite loud. Its a small sacrifice for me (possibly larger for others) to get increased braking power and reduced brake fade.
BMWs currently in the garage: VF570 E46 M3, E46 XI Touring, E83 X3 "M" retrofit

Last edited by chagrin; 08-10-2012 at 10:09 AM.
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Old 08-10-2012, 10:05 AM
bluskye bluskye is offline
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Location: chicago
Join Date: Jul 2002
Posts: 895
Mein Auto: 2006 330i / 2007 X3
Any slots or holes in a rotor will increase noise under heavy braking even in commuting conditions.

Now whether or not there is benefit of holes/slots under commuting conditions is another discussion.

Last edited by bluskye; 08-10-2012 at 10:08 AM.
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