and Performance Parts and Accessories

1974 Plymouth Duster Parts - Mufflers & Exhaust Pipes
Classic Industries offers a selection of Mufflers & Pipes for your 1974 Plymouth Duster. Classic Industries offers 1974 Plymouth Duster Cleaners & Supplies, 1974 Plymouth Duster Exhaust Pipes, 1974 Plymouth Duster Performance Exhaust Systems , 1974 Plymouth Duster Stock Exhaust Systems, 1974 Plymouth Duster Heat Shields & Insulation, 1974 Plymouth Duster OE Style Mufflers, 1974 Plymouth Duster Performance Mufflers, and 1974 Plymouth Duster Tailpipes & Exhaust Tips.
- Cleaners & Supplies
- Exhaust Pipes
- Full Exhaust Systems - OE-St...
- Full Exhaust Systems - Perfo...
- Heat Shields & Insulation
- OE Style Mufflers
- Performance Mufflers
- Tailpipes & Exhaust Tips

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Gibson?s CFT Superflow muffler with Convergent Flow Technology actually tunes your exhaust by using resonance chambers, directional louvered tuning ports and angular induction to draw exhaust gases into the muffler and expel...


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The Gibson MWA Muffler delivers maximum sound and the best muffler flow PERIOD! This straight-thru design promotes exhaust gases to flow at the highest rates flowing only 3cfm less than a 3-in. straight pipe, improving power...


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The Gibson MWA round race Muffler delivers Maximum Sound and the Best Muffler Flow PERIOD in a 5 inch compact competition ready package. This Straight-thru design promotes exhaust gases to flow at the highest rates flowing...


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The Gibson MWA Muffler delivers maximum sound and the best muffler flow PERIOD! This straight-thru design promotes exhaust gases to flow at the highest rates flowing only 3cfm less than a 3-in. straight pipe, improving power...


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The Gibson MWA Muffler delivers maximum sound and the best muffler flow PERIOD! This straight-thru design promotes exhaust gases to flow at the highest rates flowing only 3cfm less than a 3-in. straight pipe, improving power...


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The Gibson MWA round race Muffler delivers Maximum Sound and the Best Muffler Flow PERIOD in a 5 inch compact competition ready package. This Straight-thru design promotes exhaust gases to flow at the highest rates flowing...


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These extremely high-quality aluminized replacement exhaust systems are just the ticket to finish off a perfect restoration. These highly detailed systems feature all factory correct bends and their durable construction...


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These extremely high-quality aluminized replacement exhaust systems are just the ticket to finish off a perfect restoration. These highly detailed systems feature all factory correct bends and their durable construction...


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These extremely high-quality aluminized replacement exhaust systems are just the ticket to finish off a perfect restoration. These highly detailed systems feature all factory correct bends and their durable construction...


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These extremely high-quality aluminized replacement exhaust systems are just the ticket to finish off a perfect restoration. These highly detailed systems feature all factory correct bends and their durable construction...


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X-Change X-Pipes allow you to open and close your exhaust with the bolting or unbolting of dump plates. By exiting before the mufflers, you will make even more power! Because V8's fire unevenly, exhaust exits in pulses rather...


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OEM style aluminized headpipes which are superior to the coated style originals. Long lasting and effective against salt-road winters. Each headpipe features factory correct bends and will bolt up to the factory exhaust...


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Reproduction of the original style exhaust tips designed for use with various 1968-74 Dodge and Plymouth A-Body models. Each exhaust tip is manufactured to correct dimensions and chrome plated offering an OE appearance. ...


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OEM style aluminized head pipes which are superior to the coated style originals. Long-lasting and effective against salt-road winters. Will bolt up to the factory exhaust manifolds without any modifications. Sold...


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Magnaflow?s wide-open performance muffler outflows OEM chamber style mufflers by as much as 167%, reducing engine heat and back pressure that improves exhaust scavenging from the combustion chamber. The greater efficiency...


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Magnaflow?s wide-open performance muffler outflows OEM chamber style mufflers by as much as 167%, reducing engine heat and back pressure that improves exhaust scavenging from the combustion chamber. The greater efficiency...


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Gibson?s CFT Superflow muffler with Convergent Flow Technology actually tunes your exhaust by using resonance chambers, directional louvered tuning ports and angular induction to draw exhaust gases into the muffler and expel...


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Magnaflow?s wide-open performance muffler outflows OEM chamber style mufflers by as much as 167%, reducing engine heat and back pressure that improves exhaust scavenging from the combustion chamber. The greater efficiency...


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Magnaflow 5"x8"x14" Polished Stainless Steel Muffler with 2-1/2" Offset Inlet / 2-1/2" Offset Outlet
Magnaflow?s wide-open performance mufflers outflow OEM chamber style mufflers by as much as 167%! This reduces engine heat and back pressure and improves exhaust scavenging from the combustion chamber. This muffler...


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This MagnaFlow stainless steel exhaust tip will last five times longer than chrome tips. The super-tough polished stainless steel exhaust tip will continue to shine for years and is available in a variety of styles, sizes,...


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These all-new aluminized OEM style tail pipes are superior to the coated style originals. These high quality exhaust tips are a great finishing touch to a perfect restoration. Each tailpipe features factory correct bends for...




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Gibson?s CFT Superflow muffler with Convergent Flow Technology actually tunes your exhaust by using resonance chambers, directional louvered tuning ports and angular induction to draw exhaust gases into the muffler and expel...


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Gibson?s CFT Superflow muffler with Convergent Flow Technology actually tunes your exhaust by using resonance chambers, directional louvered tuning ports and angular induction to draw exhaust gases into the muffler and expel...


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Gibson?s CFT Superflow muffler with Convergent Flow Technology actually tunes your exhaust by using resonance chambers, directional louvered tuning ports and angular induction to draw exhaust gases into the muffler and expel...


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Gibson?s CFT Superflow muffler with Convergent Flow Technology actually tunes your exhaust by using resonance chambers, directional louvered tuning ports and angular induction to draw exhaust gases into the muffler and expel...


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Gibson?s CFT Superflow muffler with Convergent Flow Technology actually tunes your exhaust by using resonance chambers, directional louvered tuning ports and angular induction to draw exhaust gases into the muffler and expel...


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MagnaFlow's stamped X- Pipe incorporates a gentler inner radius that allows for better exhaust scavenging, noise cancellation and better balance between clylinder banks. With this design, power is increased while decibel...


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Magnaflow?s wide-open performance mufflers outflow OEM chamber style mufflers by as much as 167%! This reduces engine heat and back pressure and improves exhaust scavenging from the combustion chamber. Magnaflow minimizes...


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OEM style mufflers which are superior to the coated style originals. Long-lasting and effective against salt-road winters. Manufactured to perform like the factory mufflers and produce the correct sound tone. Our performance...


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OEM style mufflers which are superior to the coated style originals. Long-lasting and effective against salt-road winters. Manufactured to perform like the factory mufflers and produce the correct sound tone. Our performance...


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Gibson?s CFT Superflow muffler with Convergent Flow Technology actually tunes your exhaust by using resonance chambers, directional louvered tuning ports and angular induction to draw exhaust gases into the muffler and expel...


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BBK Varitune mufflers are the first of their kind in the aftermarket fully adjustable performance Mufflers. They can be adjusted for sound and exhaust flow by simply moving the adjustment screw in or out from underneath the...


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Gibson?s CFT Superflow muffler with Convergent Flow Technology actually tunes your exhaust by using resonance chambers, directional louvered tuning ports and angular induction to draw exhaust gases into the muffler and expel...


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Gibson?s CFT Superflow muffler with Convergent Flow Technology actually tunes your exhaust by using resonance chambers, directional louvered tuning ports and angular induction to draw exhaust gases into the muffler and expel...


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Gibson?s CFT Superflow muffler with Convergent Flow Technology actually tunes your exhaust by using resonance chambers, directional louvered tuning ports and angular induction to draw exhaust gases into the muffler and expel...


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Gibson?s CFT Superflow muffler with Convergent Flow Technology actually tunes your exhaust by using resonance chambers, directional louvered tuning ports and angular induction to draw exhaust gases into the muffler and expel...


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Gibson?s CFT Superflow muffler with Convergent Flow Technology actually tunes your exhaust by using resonance chambers, directional louvered tuning ports and angular induction to draw exhaust gases into the muffler and expel...


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Gibson?s CFT Superflow muffler with Convergent Flow Technology actually tunes your exhaust by using resonance chambers, directional louvered tuning ports and angular induction to draw exhaust gases into the muffler and expel...


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BBK Varitune mufflers are the first of their kind in the aftermarket fully adjustable performance Mufflers. They can be adjusted for sound and exhaust flow by simply moving the adjustment screw in or out from underneath the...


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BBK Varitune mufflers are the first of their kind in the aftermarket fully adjustable performance Mufflers. They can be adjusted for sound and exhaust flow by simply moving the adjustment screw in or out from underneath the...


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The Gibson MWA Muffler delivers maximum sound and the best muffler flow PERIOD! This straight-thru design promotes exhaust gases to flow at the highest rates flowing only 3cfm less than a 3-in. straight pipe, improving power...


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MagnaFlow's stainless steel Tru-X crossover pipe represents a significant leap forward in technology over traditional H-Pipes. The gentler radius allows for better exhaust gas scavenging and noise cancellation. Dimensions:...


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Magnaflow?s wide-open performance mufflers outflow OEM chamber style mufflers by as much as 167%! This reduces engine heat and back pressure and improves exhaust scavenging from the combustion chamber. This muffler...


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Magnaflow?s wide-open performance mufflers outflow OEM chamber style mufflers by as much as 167%! This reduces engine heat and back pressure and improves exhaust scavenging from the combustion chamber. This muffler...


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Sometimes you just have to have the best of everything. When it comes to flow, you just can?t get anything better than our Race Pro Muffler. This baby features a "straight through" path with through-put that can flow 95%...


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Magnaflow?s wide-open performance mufflers outflow OEM chamber style mufflers by as much as 167%! This reduces engine heat and back pressure and improves exhaust scavenging from the combustion chamber. This muffler...


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Magnaflow?s wide-open performance mufflers outflow OEM chamber style mufflers by as much as 167%! This reduces engine heat and back pressure and improves exhaust scavenging from the combustion chamber. This muffler...


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Magnaflow?s wide-open performance mufflers outflow OEM chamber style mufflers by as much as 167%. This reduces engine heat and back pressure and improves exhaust scavenging from the combustion chamber. This muffler...


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Flowmaster offers a pre-fabricated universal balance pipe set to ease the installation of a crossover pipe in a dual-exhaust system. Made in USA Set includes T-pipe connectors, balance pipe and clamps. Emission Note: 50-...


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The more gentle radius of this y-pipes allow for better exhaust gas flow and for better balance between cylinder banks. The result is a significant increase in power and torque with a reduction in db sound levels.


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The Gibson MWA Muffler delivers maximum sound and the best muffler flow PERIOD! This straight-thru design promotes exhaust gases to flow at the highest rates flowing only 3cfm less than a 3-in. straight pipe, improving power...


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The Gibson MWA Muffler delivers maximum sound and the best muffler flow PERIOD! This straight-thru design promotes exhaust gases to flow at the highest rates flowing only 3cfm less than a 3-in. straight pipe, improving power...


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The Gibson MWA Muffler delivers maximum sound and the best muffler flow PERIOD! This straight-thru design promotes exhaust gases to flow at the highest rates flowing only 3cfm less than a 3-in. straight pipe, improving power...


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The Gibson MWA Muffler delivers maximum sound and the best muffler flow PERIOD! This straight-thru design promotes exhaust gases to flow at the highest rates flowing only 3cfm less than a 3-in. straight pipe, improving power...


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The Gibson MWA Muffler delivers maximum sound and the best muffler flow PERIOD! This straight-thru design promotes exhaust gases to flow at the highest rates flowing only 3cfm less than a 3-in. straight pipe, improving power...


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Sometimes you just have to have the best of everything. When it comes to flow, you just can?t get anything better than our Race Pro Muffler. This baby features a "straight through" path with through-put that can flow 95%...


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Sometimes you just have to have the best of everything. When it comes to flow, you just can?t get anything better than our Race Pro Muffler. This baby features a "straight through" path with through-put that can flow 95%...


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Sometimes you just have to have the best of everything. When it comes to flow, you just can?t get anything better than our Race Pro Muffler. This baby features a "straight through" path with through-put that can flow 95%...


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This welded, 12" extended length reducer connects your headers directly to your Pypes X-pipe to eliminate unnecessary seams, clamps and extra work. Constructed of polished 304 stainless steel and feature a Limited Lifetime...

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- Full Exhaust Systems - OE-St...
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