10 Best Automotive Performance Header Gaskets 2025

When it comes to automotive performance, every detail counts. And that's especially true for header gaskets. We've scoured the market to bring you the top 10 best automotive performance header gaskets out there, with scores ranging from an impressive 9.8 down to a respectable 7.5. Our top pick? The Percy 66011 Seal-4-Good Flange Gasket. Not only did it score the highest, but its precision-cut design and high-quality materials make it a standout pick for anyone serious about their ride. Trust us, you don't want to skimp on something as important as your header gasket. Dive into our full review to learn more about our top picks and get ready to take your ride to the next level.