BAT's rotors are known for warping. Sometimes they are warped out of the box.
Here are a few suggestions to help cut down on warped rotors. As others have suggested, be careful about properly torqing the lug nuts. Break in new ones gently to not only bed in the new pads and rotors, but also to more gently heat and cool the rotors for several cycles. If you do get warpage, don't be afraid to machine the rotors. As long as you don't need to cut them too much, a used rotor that has been through several heating and cooling cycles can actually be a better rotor than a new one. If you are still having a lot of trouble with warping rotors, consider having them cryogenically tempered. You can read about it at
www.frozenrotors.com You may want to shop around as you may be able to get better pricing if you can find a place that does this work closer to you. It does work. The rotors last longer and are more resistant to warping.
