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      11-26-2012, 07:55 PM   #15
bigjae1976
That's what she said...
 
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Drives: 11 E90 M3 Individual
Join Date: Mar 2006
Location: Milwaukee, WI

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2004 BMW M3  [4.50]
2011 BMW E90 M3  [5.00]
2013 BMW 328i  [5.00]
Quote:
Originally Posted by M3SQRD View Post
Interesting...I've had zero issues with my DD rotors (dimple rotor style). The DD floating design is identical to what PFC uses on professional race cars - the Ganassi DP race car uses them
My personal experience was surprising especially since I was running PFC pads with them. I bed the pads in on the new rotors and went to the track. They heat cracked after the first use and then they grew really quickly. I only got 4 days out of them and some of the cracks were getting alarmingly wide. Compared to the E46 OEM M3 euro rotors where I got 6 weekends out of. I kept going and eeked out 2 more weekends but I had back up rotors with me.

See the thread below. I don't think my rotors were far from looking like that. Now that's 2 of 4 people that I know run these rotors. Maybe bad luck but I'll personally pass on these.

http://www.m3post.com/forums/showthr...=cracked+rotor

Compared to my stoptech rotors with my stoptech kit (about the same size) which I got 16 months of constant track days and street driving out of (and the rings are cheaper).
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