Do I need to clean the mounting surface before installing this gasket?

Yes. Remove all old gasket material and carbon buildup from both the header and manifold surfaces with a gasket scraper. A clean surface ensures proper sealing and prevents exhaust leaks.

What fasteners do I need to bolt the header back down?

This gasket does not include bolts. Use the factory fasteners from your original header installation or refer to your vehicle service manual for the correct bolt spec and torque sequence.

Can this gasket be reused if I remove the header?

No. Aluminum gaskets should be replaced once removed—they compress and lose their seal properties. Install a fresh gasket every time you separate the header from the manifold.