Cometic HT Fiber exhaust header gasket sets feature a graphite/fiber blend mechanically bonded to a perforated steel core. The facing material features 75 percent graphite with Kevlar® fiber reinforcements for strength and durability. These manifold gaskets are available in sizes for a variety of port styles. They're ideal for less-than-perfect sealing surfaces encountered with aftermarket headers. Order the set recommended for fitment on your header application.