Will this manifold require gasket material or sealant before installation?

Use a quality high-temperature gasket at all mounting surfaces. Stainless steel benefits from proper sealing to prevent boost leak and thermal cycling issues.

Can I run this manifold on a stock engine, or is it turbo-only?

This is a turbo-specific manifold — it's designed to mount and flow exhaust for turbocharger applications. Stock naturally aspirated setups use different header designs.

What prep work is needed before bolting this on?

Clean the mounting surface on your engine block to remove old gasket material and carbon buildup. The manifold itself ships ready to install — no prep needed on the part.