* Manifolds (or headers): These are the pipes that connect the engine's exhaust ports to the rest of the system. Headers are aftermarket performance parts that offer improved flow, while manifolds are the original equipment. A dual exhaust system requires either dual manifolds or headers designed for dual exhaust.
* Exhaust Pipes: These are the main pipes that run from the manifolds/headers to the mufflers. They'll be two separate pipes in a dual exhaust system.
* Mufflers: These are two mufflers, one for each exhaust pipe, to reduce noise and exhaust gases. The choice of muffler will impact the sound of the exhaust. Many different types are available, from quiet to loud and from performance-oriented to stock replacements.
* Tailpipes: These are the pipes that extend from the mufflers to the rear of the vehicle, typically exiting out the back bumper. Again, there will be two in a dual exhaust system.
* Hangers and Clamps: These are the necessary hardware to secure the exhaust system to the vehicle's undercarriage.
* Connecting Pipes/Y-Pipe (optional depending on manifold/header design): Some systems may require a Y-pipe to join the two exhaust pipes from the manifolds into one pipe before splitting again into two tailpipes.
* Catalytic Converter(s) (if applicable): Depending on whether you're aiming for a stock-style replacement or a more performance-focused system, and depending on local emission regulations, you might need to include one or two catalytic converters. 1979 was in the era where catalytic converters were becoming increasingly common.
Finding a System:
Finding a complete pre-assembled kit specifically for a 1979 Plymouth Volare dual exhaust system might be difficult. Most exhaust system manufacturers focus on more common vehicles. You'll likely need to source the components individually from a parts supplier, either online or at an auto parts store specializing in classic car parts. Some exhaust shops can also custom-build a dual exhaust system to your specifications. Be sure to specify the engine size (e.g., 6-cylinder, 318 cubic inch V8, etc.) when ordering parts, as exhaust system designs vary based on engine size and configuration.
