· Super Moderator
Houston stock, it was probably the sound barrier.Once, and only the one time I had a few clunks come from the rear of my car. I was decelerating from a test to verify that the speed limiter had been removed by my tuner. It had and was a rather exhilirating experiment. It was a bit unnerving to hear those clunks while coasting down and gradually braking. I've no idea what caused it and haven't tried to repeat those exact conditions.
My dash cam caught it but since the link is downloadable I'm not posting it in the open.