O.S. left side exhaust header for the .12 TZ rear exhaust O.S. engines is constructed of polished natural aluminum. This product includes one manifold (header). One maniflod (header) spring.
Exhaust Seal Ring (for spring type tuned pipe, between tuned pipe and header).
Joint Spring (for spring type tuned pipe)
Exhaust Seal Ring (Gasket) (between header and engine)
Joint Tube (for non-spring type tuned pipe)