Yosh quality control

A little annoyed by the quality of this yosh pipe I got about 10 months ago. I noticed these the first time I repacked the exhaust (which was about 2 months after I bought it). Didnt do anything about it when I first saw it because it had held up fine until that point.

However now it keeps breaking rivets out and finally the last time I rode it, all of the rivets on the end closest to the headpipe broke out and the whole pipe opened up and packing came out.

I solved the problem by drilling out all the holes to 1/4" and using some big honkin 1/4" rivets, but damn this is still lame.

And for the record I did email yosh about this and called them, but they only offered me to send it in to them and pay to have it repaired. I have also repacked exhausts many times and drilled out many rivets (USMC ch-46 airframe mechanic), so im 100% positive I didnt cause this. Besides, the drill I use to take out rivets is a lot larger than the rivet itself.