Most "warped rotors" can be attributed to friction pad material transferred unevenly to the surface of the disc. In any case, you should check the disc for any cracks or debris and make sure the hub is set properly. I would also check and make sure the lugs are evenly and properly torqued.
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[09][MB][6-Spd MT][Touring][Stillen Gen III][K&N][Borla CBE][Evo-R]
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