These seals appear to be of good quality. However, the two I received were folded at some point. The pads lay flat in the box I received so I don't know when the folding happened. One of them broke when unpacked because the metal core broke when folded. Since my truck was being dismantled when this happened, I was forced to rely on a high temp RTV to repair the damage. It's been a few weeks and it seems to be holding up. Addendum: All these seals are blown. Found these pads from Remflex. Your pipes will melt before they burn. Remflex is thick and soft enough to seal the flange. https://www.amazon.com/Remflex-2045-Exhaust-Gasket-Engine/dp/B005EMI542/ref=sr_1_1?s=automotive&ie=UTF8&qid=1546812433&sr=1-1&keywords=remflex+2045