69 yenko chevelle

[ORIGLS6]

I had a '68 Chevelle and bought a set of the exhaust tips after the '69's came out. Had to modify the tailpipes to make them work but the ones I received from GM had the rolled edge. Evidently the rolled edge pieces were early service items. They barely lasted a year before rusting through at the bottom. The next set I got were the straight cut. My guess is GM cured the rust problem by switching to the "new" design.
Can't testify to the use of resonator pipes being exclusive to the chambered systems in '69 but my '70 came with resonator pipes and straight cut tips, as did all '70 SS Chevelles (excluding ElCaminos).

P.S. When I first met Rick Nelson, I said the same thing "I thought you died in a plane crash." His response was "I did, but I got better." Super guy! Very knowledgeable and talented.