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1971-74 MOPAR B-Body Dual Exhaust System – 383, 400, 426 HEMI, 440
This factory-style dual exhaust system fits 1971–1974 Dodge Chargers, Plymouth Road Runners, Satellites, and GTX models with 383, 400, 426 HEMI, or 440 engines. It includes exhaust pipes, mufflers, and tailpipes—all built to OEM specs.
Unleash factory-correct sound and classic MOPAR muscle with our dual exhaust system built specifically for 1971–1974 B-Body Dodge and Plymouth models equipped with big block 383, 400, 426 HEMI, or 440 engines. Whether you're restoring a numbers-matching classic or upgrading your weekend warrior, this system delivers the factory look, fit, and aggressive tone true MOPAR fans demand.
Crafted to OEM specifications and built using high-quality aluminized or stainless steel, this system provides reliable performance and a sound that's unmistakably vintage MOPAR.
Standard Kit Includes:
- Left & Right Exhaust Pipes (2-1/4"" diameter)
- Left & Right Mufflers (OEM-style sound)
- Left & Right Tail Pipes (2-1/4"" diameter)
Stainless steel systems with stock mufflers take approx. 4–6 weeks to fabricate.
Optional Upgrades:
- Turbo Mufflers – Deep, aggressive rumble
- GlassPak Mufflers – Loud and attention-grabbing
- Tailpipe Turn-Downs or Prepped for Chrome Tips
- Universal Clamp & Hanger Kit (Mild Steel)
Chrome tips sold separately through a third-party source.
Vehicle Fitment:
- 1971–1974 Dodge Charger (383, 400, 426 HEMI, 440)
- 1971–1974 Plymouth Satellite (383, 400, 426 HEMI, 440)
- 1971–1974 Plymouth Road Runner (383, 400, 426 HEMI, 440)
- 1971 Plymouth GTX (440, 426 HEMI)
Important Fitment Notes:
- Header Users: This system is designed for OEM exhaust manifolds only.
If you are using aftermarket headers, you must cut and modify the front pipes for proper fitment.
System is sold “AS-IS” for header applications.
- Manifold Casting Numbers: Please provide casting numbers. We’ll verify compatibility before fabrication.
- Welded Flanges: Depending on your application, flanges may or may not come welded.
Materials & Construction
- Built to OEM specs using compression bending (no mandrel bending)
- Mild steel or 304 stainless steel tubing
- 18–16 gauge construction for durability and factory-style aesthetics
- Designed for local car show quality and everyday driving
Material Options:
- Aluminized Steel: 14–16 gauge tubing, 18 gauge mufflers
- Stainless Steel: 304 tubing (14 gauge), 409 mufflers (18 gauge)
Returns & Warranty Policy
- No refunds due to rising material/labor costs
- Free re-bending available for incorrectly fabricated parts (if OEM manifold info was accurate)
- Returns accepted only if the entire system is incorrect
- Must be requested within 14 days and be unused, undamaged, and in original packaging
- Subject to 15% restocking fee
Customer is responsible for any corrections needed due to incorrect or incomplete vehicle information.
Why Choose Our System?
- Tailored specifically for 383, 400, 426 HEMI & 440 B-Body MOPARs
- Options for sound customization and chrome tip compatibility
- Expertly handcrafted in the USA
- Backed by real enthusiasts who know classic MOPARs inside and out
Turn heads and preserve authenticity with a dual exhaust system engineered to perform, last, and sound like the golden age of muscle cars.
Shipping
We utilize UPS, Fedex, and USPS for all of our shipping needs. Carrier choice is based upon availability and needs of the customer and is the sole discretion of PFYC. We always try to ship within 24 hours of order placement (do to the custom nature of some products, shipping within 24 hours is impossible, actual shipping time frames will be listed in the product description). Please keep in mind that some products such as Custom Fit Car Covers, Lloyds Floor Mats, Painted accessories, and Racemesh Products can take 3 -10 days to ship and are charged at time of order placement. Racemesh products take 4 weeks to ship as they are made to order.
Sometimes a product needs to be returned. Our goal is to make this process as painless as possible. If you receive a product that is incorrect, damaged or inferior, please contact us immediately so we can begin the returns process and make sure you receive what you ordered quickly. For all returns, you must receive a Return Merchandise Authorization (RMA) number.
When you send back an item you no longer want, you have two choices for getting credit, assuming you properly followed all guidelines for returns:
You've Changed Your Mind
If you have ordered and received an item from PFYC.com that you no longer want, please follow the directions in the Returning Items section below. Please note that you are responsible for return shipping, and we will not reimburse you for the original shipping cost.
Incorrect or Damaged Product
If you have received damaged merchandise or have received items that you did not order, please contact us by replying to your e-mail receipt, making sure to copy the contents of the receipt in your e-mail. Simply let us know the error or that the product was damaged, and we'll take care of it at no cost to you, including all shipping charges (up to the original amount you paid for shipping). We will wait to receive and inspect the originally-shipped product prior to shipping a replacement. If a product was damaged during shipping, you must retain all materials until the shipper (UPS, FEDEX, etc.) has had a chance to inspect the package, if they choose. Our policy is to replace damaged or incorrect products. If you choose not to accept a replacement, it is considered a regular return and subject to our return policy guidelines listed above.
Replacement Product
If we sent you something in error, and we send the correct item out but do not get the wrong one back within 10 business days, we will charge your credit card for the full amount of the replacement item or the incorrect item plus shipping, whichever is greater.
Warranty Replacement
If you feel a product you have purchased is defective or has failed under warranty, contact us. We will help determine the likelihood it is defective prior to your returning the product for inspection. This will save you time and money if there happens to be another reason for the problem you are having with the product. Once a product has been determined it may be defective and requires further inspection, we will instruct you as to your next course of action. This next step may vary depending on the guidelines set forth by the manufacturer. Shipping costs for returning parts for inspection and returning the part to you are usually your responsibility depending on the manufacturer and what their warranty policy is. More information can be found in our Customer Service section under the Product Warranties section.
Follow the steps below to return items that you no longer want:
If you have any questions about our return policy, please contact us.