I'm curious to know who's running a daily driver with cross-drilled & slotted rotors like these from Summit:
http://www.summitracing.com/parts/SUM-DSEP-5115L/
along with ceramic pads like these, also from Summit:
http://www.summitracing.com/parts/HWK-HB210Z-677/

What are your opinions on performance, stopping distance, and overall improvements compared with stock.
I'm pulling the trigger on new cross-drilled & slotted, or just slotted rotors along with Hawk Performance Ceramic pads either way.
I just want a first hand opinion form guys here who have "actually" used or are using them now, and not an opinion from a googled web page, I've read enough of them.
If you are running either rotor above what kind is it and where did you purchase them.
~Thanks

 

i've heard cross drilled rotors don't last long, cause they crack.

 

they make a difference that's for sure.....

 

x2. The bores create stress, which may crack the rotor when seriously exposed to hard braking. The pads wear ridiculously fast. They don't improve stopping distance significantly. You almost never see serious racers with cross-drilled rotors on their cars, it's mostly for show.

 

You "heard" this.....not good enough....I "heard" unicorns exsist....?

 

What about slotted? Heard nothing?

 

they are supposed to disappate heat faster. not really sure if they are worth the money for the application, ya know? i mean it's not a vette so high speed braking is not normally an issue with the XJ.

 

my grandpa told me that dumb people learn on mistakes.... smart people learn on mistakes of dumb people. i've been doing this for over 10 years. i know a "too good" deal when i see one. no reason to be rude.

 

Friend of mine in college had a 96 Z28 Camaro with slotted rotors. He wore down brake pads extremely quickly....

 

there is a lot that goes into the pad/rotor issue. different pads compositions or hardness of the rotors. personally i think factory or OEM equivalent is best. less complications and less premature failures.

 

I second that. sometimes you'll find out that the aftermarket rotors for your year model XJ are a different size. went through that already. 1 hour i'll never get back.

 

Not being rude at all...I heard the same things: they crack, they wear pads down faster, they this, they that. You can read 10 negative things about 'em, and 20 good things...so instead of going off of what I, you, or anybody has "read or heard" I want to know who is or has used this type of set up, and their own personal results compared to stock.
I may go for just Slotted Rotors....they have to do "something" to improve braking....

 

Probably a reason why they aren't standard on vehicles.

Learn something everyday, I just saw some the other day and wondered if they were and improvement.

 

if no one said they use them, that means that there's a reason. unless you're driving on 35's at 100 mph and deer keeps popping in front of you, there's no reason to stop on a dime. however, if that's the case, get a 50 cal. mount with digital "identify and destroy" setup. it will save you brakes.
i myself use stock rotors with vented pads. works wonders for me.

 

the XJ is an off road vehicle as we all know. i think if you are gonna spend money on your rig, do it in suspension and drive train upgrades. make it the most capable off road machine on the trail.