Do I need to prep or resurface the header flanges before installation?

Clean both the header flange and cylinder head port surface with a wire brush to remove carbon and debris. A smooth, flat mating surface ensures the gasket seals properly — no machining required unless flanges are visibly warped.

What fasteners should I use to clamp the header to the head?

Use the bolts or studs specified in your engine's service manual. Torque sequence matters — tighten in a crisscross pattern to draw the flange evenly and prevent gasket pinching.

Can I reuse this gasket if I remove the headers later?

One-time use only. Once compressed and heated, exhaust gaskets lose their seal integrity. Install fresh gaskets every time you pull the headers off.