The Cometic Exhaust Header Collector Gasket is an aluminum .040" collector gasket set with a 3.0" diameter port and 3.875" bolt circle. Made to seal between headers or manifolds and cylinder heads without sealants, it handles mixed head and manifold materials and extreme cylinder pressures. Corrosion resistant and built to maintain torque set, it prevents burn-through, push-out and exhaust leaks at the flange.
Cometic Exhaust Header Collector Gasket .040in Aluminum-3.0in Diameter Port-3.875in Bolt Circle-Set