Do I need to reuse the old bolts, or should I buy new ones?

Reuse your factory header bolts if they're in good shape. If they're stretched, corroded, or you're pulling a stubborn header, new bolts ensure even clamping pressure and a better seal on the fresh gasket.

Should I clean the header and head surface before installing the new gasket?

Yes. Wire brush or scrape away old gasket material and carbon buildup on both mating surfaces. A clean, flat surface gives the new gasket the best chance to seal without leaks.

Can I install this myself with basic hand tools?

You'll need a socket set and wrenches to remove and reinstall your header. Pulling a header takes patience but is straightforward on most builds—space under the car is the real challenge. Break the bolts loose carefully to avoid stripping.