Description
Overview
The Flowmaster Dodge, Plymouth (273, 318, 340, 360, 383, 426) Exhaust System Kit is a complete crossmember-back dual exhaust system built for the classic Mopar enthusiast who wants real performance backed by an unmistakable sound. Part of Flowmaster’s American Thunder series, this 2.50 in. system is mandrel bent for maximum flow and pairs specially selected Super 40 Series mufflers with a dual tail pipe layout to deliver an aggressive yet street-friendly character.
If you have been searching to shop for exhaust upgrades that bolt on and transform how your car drives and sounds, this Flowmaster kit brings a genuine performance exhaust experience to your 2WD Dodge or Plymouth. Mandrel-bent tubing keeps the flow smooth from the crossmember back, helping this exhaust system unlock the throttle response and power your engine was built to make.
Key Benefits
Like all Flowmaster systems, this exhaust system is engineered to improve throttle response, power, and mileage. The American Thunder tuning generally delivers a moderate to aggressive interior and exterior tone, giving you that rumble enthusiasts love while remaining livable on the street. Actual sound level will depend greatly on your engine and level of modification, so the more you build, the more this car exhaust rewards you.
- Crossmember-back dual exhaust system with a proven performance sound
- Mandrel-bent 2.50 in. tubing for maximum flow and performance
- Includes specially selected Super 40 Series mufflers
- American Thunder series delivers a moderate to aggressive tone
- Silver finish pipe with dual tail pipe configuration
- CARB (California) compliant, Emission Code 5
- Includes all necessary parts and hardware for an easy fit installation
Fitment
This kit is designed for Dodge and Plymouth applications running the 273, 318, 340, 360, 383, or 426 engines in a 2WD configuration. As a crossmember-back system, it replaces the exhaust pipe and muffler section for a complete rear-half upgrade. Mufflers are included as part of the kit, while exhaust tips are sold separately, so you can finish the look exactly the way you want. Note that a heat shield is not included with this system.
What You Get
Whether you are comparing a Borla exhaust, Corsa exhaust, MagnaFlow exhaust, or Walker exhaust, the Flowmaster American Thunder catback-style crossmember-back system stands out for its bold tone and easy installation. Every kit ships with the mufflers, exhaust pipe sections, and hardware needed to complete the job, making it a smart choice for the enthusiast who wants their performance to be heard. Please note this product carries a California Proposition 65 warning.










