1998 Chevrolet Camaro

I STARTED EXPERIENCING A PULSATING SENSATION FROM THE BRAKES AFTER ABOUT 5 THOUSAND MILES. THIS SENSATION USUALLY OCCURS DURING MODERATE BRAKING AT FREEWAY SPEEDS. THE PULSING CONTINUED TO INCREASE OVER TIME. IT GOT TO THE POINT WHERE THE STEERING WHEEL WOULD VIBRATE IN MY HANDS AS I APPLIED THE BRAKES WHILE APPROACHING A STOP SIGN AT 35 MPH. I CONTACTED MY DEALER ABOUT BRINGING MY CAR IN TO HAVE THEM SERVICE THE BRAKES. THEY TOLD ME THE ROTORS WERE WARPED AND THAT THIS WOULD NOT BE COVERED UNDER WARRANTY. I DECIDED TO PULL THE ROTORS MYSELF AND HAVE THEM RESURFACED. ONCE THIS PROCEDURE WAS PERFORMED THE BRAKES OPERATED PERFECTLY. IT IS NOW 3 THOUSAND MILES LATER AND I HAVE THE SAME PROBLEM AGAIN. THIS IS THE FIFTH CAMARO Z28 I HAVE OWNED AND I HAVE NOT HAD ANY PROBLEMS WITH THE BRAKES ON MY OTHER VEHICLES( 2 1992, 1 1995, 1 1996). I DO NOT DRIVE THIS VEHICLE ANY DIFFERENTLY THAN MY PREVIOUS VEHICLES. I REALIZE THE BRAKES WERE REDESIGNED FOR THIS VEHICLE IN 1998 AND FEEL THAT THEIR IS A DEFECT IN EITHER THE DISC ROTOR TYPE, MANUFACTURE, OR MATERIAL. THE DISC ROTORS AND OTHER RELATED BRAKE COMPONENTS THAT ARE A DIRECT CAUSE OF THIS PROBLEM SHOULD BE REPLACED BY CHEVROLET AT NO COST TO THE CONSUMER.