Review on 🚀 Enhance Exhaust Performance with Mr. Gasket 7421G Solid Aluminum Collector Header and Muffler Gasket, Silver by Obhed Mac

Good product and it seals my long Camaro pipes but be warned it will not fix warped flanges. Your mounting flange needs to be a little straight for them to work or you'll still have a leak. I chose to use a metal o-ring on the inside of the manifold on one side as it was slightly warped around the flange and just couldn't sit flat without a full manifold replacement. It's not the pad's fault so I'll still give it 5/5 stars. The screws also appear to be of good quality.