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1970 B-Body Roadrunner GTX Charger 383 426 440 Engine Dual Exhaust System
SKU: 1970-B-Body-ClasE
1970 MOPAR B-Body Dual Exhaust System – 383, 426 HEMI, 440 Engines
This OEM-style dual exhaust system fits 1970 Dodge Charger, Coronet, Super Bee, and Plymouth Road Runner, GTX, and Satellite models with 383, 426 HEMI, or 440 engines. Includes exhaust pipes, mufflers, tailpipes, and H-pipe for 426/440 setups.
1970 MOPAR B-Body Dual Exhaust System – Fits 383, 426 HEMI & 440 Engines
For Plymouth Road Runner, GTX, Satellite | Dodge Charger, Coronet, Super Bee
Bring your big-block MOPAR back to life with this premium dual exhaust system, built to match original factory specifications for the legendary 1970 B-Body platforms. Whether you're restoring a Plymouth Road Runner, GTX, or a Dodge Charger R/T, this system delivers that unmistakable MOPAR sound and proper fitment—all while staying true to OEM appearance and layout.
Crafted from high-quality aluminized or stainless steel, this exhaust system is the perfect choice for muscle car enthusiasts who want performance, reliability, and period-correct tone.
Standard Kit Includes:
- Left & Right Exhaust Pipes (383 Engines – 2-1/4"" Diameter)
- Left & Right Mufflers (OEM-style factory tone)
- Left & Right Tail Pipes (2-1/4"" Diameter)
- H-Pipe Included for 426 HEMI & 440 Engines (2-1/2"" Diameter)
Note: One-piece H-pipe kits must be picked up—call to place this type of order.
Stainless steel systems with stock mufflers require 4–6 weeks to fabricate.
Optional Upgrades:
- Turbo Mufflers – Deep, aggressive tone
- GlassPak Mufflers – Loud and raw muscle sound
- Tailpipe Turn-Downs or Prepped for Chrome Tips
- Clamp & Hanger Kit (Universal Mild Steel)
Chrome tips sold separately by a third-party vendor.
Vehicle Fitment:
Dodge
- 1970 Charger (including R/T)
- 1970 Coronet (including Coronet R/T)
- 1970 Super Bee
Plymouth
- 1970 Road Runner
- 1970 GTX
- 1970 Satellite (with 440 engine trim)
Engine & Manifold Compatibility:
383 & 440 Manifold Casting Numbers
- Driver Side: 2951865
- Passenger Side: 2899879
426 HEMI Manifolds – We’ll verify casting numbers.
Please provide full engine and vehicle details when ordering to ensure accurate fabrication.
Important Notes:
- Designed for use with OEM manifolds only
- Header applications require modification to the front pipes (system sold as-is)
- Flanges may or may not be welded depending on application
Materials & Construction:
All systems are compression bent, replicating OEM production methods. Built to local car show quality and general enthusiast standards—not concours or numbers-matching vehicles.
Material Specs:
- Aluminized Steel:
- Tubing: 14–16 Gauge | Mufflers: 18 Gauge
- Diameters: 1-3/4", 2", 2-1/4", 2-1/2"
- Stainless Steel:
- Tubing: 304 Stainless, 14 Gauge
- Mufflers: 409 Stainless, 18 Gauge
Returns & Warranty Policy
- No refunds due to rising material and labor costs
- Complimentary re-bending for incorrect parts (with OEM info provided at checkout)
- Returns accepted only if the full system is incorrect
- Must be requested within 14 days, unused, undamaged, and in original packaging
- 15% restocking fee applies
Why Choose Our Exhaust Systems?
- Tailored for true 1970 B-Body MOPAR muscle
- Built to factory specs for proper fit and tone
- Customizable muffler and tailpipe options
- Fabricated by enthusiasts who understand the details
Give your 1970 Road Runner, Charger, or GTX the exhaust system it deserves—period-correct fitment, unmistakable MOPAR tone, and quality materials designed to last.
- ManufacturerClassic Exhaust
- BrandClassic Exhaust
- MPN1970-B-Body
- Part Number_3332241970-B-Body
- Part Number1970-B-Body
- Brand NameClassic Exhaust
- VendorClassic Exhaust
- MaterialAluminized Steel, Stainless Steel
- Muffler OptionsOEM Stock Muffler(s), With Hemi Style Turbo Muffler(s) - (Aluminized Steel Only)
- Resonator OptionsWith Resonator(s), Without Resonator(s)
- Tail Pipe DesignPrep For Chrome Tips, With Turn Down Tails
- Universal Mild Steel Heavy Duty Clamp/Hanger KitWith Universal Clamp/Hanger Kit, Without Universal Clamp/Hanger Kit
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 SouthernCarParts. 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.
Returns
Should you need to return a part for refund, exchange, or credit, please contact our returns department within 30 days of purchase at orders@southerncarparts.com for a Return Merchandise Authorization (RMA) number. Most problems, such as installation, can be solved with a telephone call (888-631-1433). Southern Car Parts will not accept returned goods without prior authorization and an RMA# written clearly on the exterior of the box. The customer is responsible for freight on all return orders. Parts authorized to be returned, on a non-exchange basis, are subject to a 20% restocking fee. Returns will only be accepted within 30 days of the original date of shipment. Custom painted parts - Once these parts are started, we can refund you less the paint(chemicals) that have been used. Exception is rear spoilers and front splitters, we can refund less 20%.
Custom-made-to-order items are NOT returnable. This includes embroidered floor mats, interior embroidered items, and car covers.
Damages in Shipping
All damages from shipping must be reported to Southern Car Parts within two business days from tracking number delivery confirmation. After two business days, damages become the responsibility of the customer.