Hi, 17' SS 6 spd with the dual mode stock setup. Coming up on 35k miles. And after videoing from when new to now I noticed my exhaust sound has changed. It seems to sound better, a little smoother, less raspy and poppy but more of a gravely sound now. Anyone else notice this? Perhaps the steel of the muffler had to season with age from hot to cold and carbon deposits. In any case I have no intension of ever replacing my exhaust now. I had it in the back of my mind but it never really made sense with the Dual mode setup which was an option anyway. Such a waste to throw away a good exhaust we paid extra for.