Brakes

zcali925 · 03-07-2020, 07:53 PM

Ok so there are so many posts. I'm thinking about the power stop crossdrilled z23s front and back. Anyone have experience and/or a thread reference?

ezaircon4jc · 03-07-2020, 09:45 PM

Quote:

Originally Posted by zcali925

Ok so there are so many posts. I'm thinking about the power stop crossdrilled z23s front and back. Anyone have experience and/or a thread reference?

I've had cross-drilled a couple of times. I would never do it again. Both sets (one was PowerStop) developed micro-cracks at the holes. They are for looks only. I would go with slotted rotors.

lsturbointeg · 03-07-2020, 10:44 PM

Quote:

Originally Posted by ezaircon4jc

I've had cross-drilled a couple of times. I would never do it again. Both sets (one was PowerStop) developed micro-cracks at the holes. They are for looks only. I would go with slotted rotors.

what about the cross drilled\slotted one's?

beegeezy · 03-08-2020, 05:32 PM

Do you plan on tracking the car? If not, plain rotors/pads will last longer than slotted rotors. If you are driving the car in a way that you need to upgrade the brakes, look into the 550i or 760i brake swaps.

zcali925 · 03-08-2020, 06:48 PM

Quote:

Originally Posted by beegeezy

Do you plan on tracking the car? If not, plain rotors/pads will last longer than slotted rotors. If you are driving the car in a way that you need to upgrade the brakes, look into the 550i or 760i brake swaps.

No not tracking. Just about time to do my brakes (50k), I don't want to spend an arm and a leg. Just upgraded rotors for better stopping power. Already bought the brake lines so I'll do that at the same time. Daily driver with a tendency to push for fun from time to time.

ezaircon4jc · 03-08-2020, 11:00 PM

Quote:

Originally Posted by lsturbointeg

what about the cross drilled\slotted one's?

That's actually what I had...

Sylverlee · 03-11-2020, 12:24 AM

Do you guys change the rotors even if the thickness is still in spec?

zcali925 · 03-11-2020, 10:30 PM

Quote:

Originally Posted by Sylverlee

Do you guys change the rotors even if the thickness is still in spec?

So would you piece a set together or go off the shelf here. Not a track car, daily driver with a tendency to appropriately have fun

sszablya · 03-12-2020, 10:26 PM

https://www.summitracing.com/parts/p...el/550i-xdrive

From the Power Stop application guide, these are described as OE 2-piece design, and it seems like the description of all Z23 kits indicates the rotors will be drilled and slotted.

Experience with Power Stop cast 1-piece rotors: 2002 A4, 2007 MDX, both with those rotors. I like I'm just fine!

Power Stop 2-Piece Rotors https://f10.5post.com/forums/showthread.php?t=1699967

I ordered a set, but they're not delivered yet. Pics will go up when they come in.

03-07-2020, 07:53 PM	#1
zcali925 Private First Class 64 Rep 119 Posts Drives: '15 BMW 535i M Sport Join Date: Dec 2019 Location: Bay Area, CA iTrader: (0)	Brakes Ok so there are so many posts. I'm thinking about the power stop crossdrilled z23s front and back. Anyone have experience and/or a thread reference? __________________ Sup
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03-08-2020, 05:32 PM	#4
beegeezy Second Lieutenant 70 Rep 210 Posts Drives: 2013 535i M-Sport Join Date: Jan 2020 Location: New Orleans iTrader: (0)	Do you plan on tracking the car? If not, plain rotors/pads will last longer than slotted rotors. If you are driving the car in a way that you need to upgrade the brakes, look into the 550i or 760i brake swaps.
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03-11-2020, 12:24 AM	#7
Sylverlee Captain 150 Rep 965 Posts Drives: White 535i M-Sport, 911 GTS Join Date: Jul 2010 Location: Irvine iTrader: (2)	Do you guys change the rotors even if the thickness is still in spec?
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03-12-2020, 10:26 PM	#9
sszablya Private 35 Rep 72 Posts Drives: 2011 F10 550xi Join Date: May 2019 Location: Denver, CO iTrader: (2)	https://www.summitracing.com/parts/p...el/550i-xdrive From the Power Stop application guide, these are described as OE 2-piece design, and it seems like the description of all Z23 kits indicates the rotors will be drilled and slotted. Experience with Power Stop cast 1-piece rotors: 2002 A4, 2007 MDX, both with those rotors. I like I'm just fine! Power Stop 2-Piece Rotors https://f10.5post.com/forums/showthread.php?t=1699967 I ordered a set, but they're not delivered yet. Pics will go up when they come in.
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