i've been checking out the www.rotorpros.com & www.r1concepts.com drilled/slotted rotors. r1cocepts has these "diamond" cut slots which is suposedly better. any opinions?

. With all that machining and zinc plating for that cheap. Either its a horrible product or the other companies are ripping us off. Drilling and slotting is absolutely useless except for looking pretty. I would worry about stress cracks with that stuff. Especially with rotors that cheap cuz, you dont know what your getting. I have cracked many a plain cobra rotors at the track (one of which was a BAER Track Heat, but it was cut for new pads so its not all BAER's fault) in my car so I wouldent go near something like that. In all honesty, if they were plain I would say there fine. But with the drilling and slotting and possible crappy quality of the iron alloy used (assuming this from the price) I would stay away. If you want drilled /slotted go with a high quality brand and even then only for mild street use. But then again, this is coming from someone who runs race pads on the street and gets the rotors to about 1300 deg. F at the track, so you may be ok. Personally I run Frozen Rotors and so far they have lasted the longest so I think I will stick with them.i have e-bay rotors similar to these http://cgi.ebay.com/ebaymotors/FORD...1QQihZ006QQcategoryZ33564QQrdZ1QQcmdZViewItem i have had no problems with them i installed them along with my pbr brake upgrade...just ensyre you buy the zinc coated ones..
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thanks...it was fairly easy to do..i used dupi-color paint brush on you can get it at most autoparts stores for about $20 check out this link... http://www.dupli-color.com/products/caliper.html just ensure you clean the calipers good before painting you can remove them if you want but i have cleaned calipers before with cleaner and a small wire brush and painted them right on the car after wheel was removed...if you dont clean them right the paint will crack and chip..
Warped really fast, cant be turned...cross drilled