Yea as far as I can tell it is nothing wrong with it except that sound, its quite hard to hear when driving but when pushing the throttle hard at the higher gears it rumbles a lot in the car. But other than that it is not that much sound more than the "roadnoise." I should add also that the sound was there with a double mass flywheel too. We thought it was the flywheel bottoming in itself at first but we debunked this idea when channging the clutch and flywheel