Do I need new bolts or studs when I install this gasket?

Reuse your factory studs and bolts if they're in good condition — no new hardware needed. If any fasteners are stripped or damaged, source replacements separately before installation.

Should I clean the manifold and head surfaces before installing?

Yes. Scrape away old gasket material and carbon buildup from both the manifold face and cylinder head port surface with a gasket scraper. Wipe clean with a lint-free cloth and let dry completely before setting the new gasket.

Can I reuse the old exhaust manifold if it's not cracked?

Absolutely. This gasket works with stock or aftermarket manifolds as long as the port spacing and bolt holes match your 1.8L setup. Inspect the manifold sealing surface for warping or damage before reassembly.