http://www.mazspeed.com/forum/thread...d=48&styleid=1

all the info is over at mazspeed. check it out.
the parts are good quality parts.
ive used the rotors on and off the track
they hold up. no cracking or funky flaws.

 

Thanks for head up. I'm planning to get slotted rotors. I heard that cross drilled ones are prone to cracking. Any truth to that?

 

yes, it will crack over time.

however, it also depends on what brand. the brembo cross drilled rotors for example do not crack as far as i've seen or heard. but the benefits are defenitely good which is much more cooling than slotted rotors

im also sure cross drilled are safer nowadays than they used to 3-5 yrs. ago

 

if you read the info you can choose.
cross drilled
slotted
drilled and slotted


im running the rotors on mycar and they have seen some very hard track use.
no cracking warping or problems.
their good qualtiy for a very low price.


check out the mazspeed link im sure itll be worth your time.

 

Is someone smoking crack?*

*From the famous drilled rotors thread:
https://www.rx7club.com/showthread.p...=smoking+crack

There are no benefits to drilling other than looking "cool." I've personally seen drilled Brembo rotors develop cracks, albeit not on a street-driven-only car.