Long Tube Headers Built for Real Airflow Gains on the 5.7L Durango
These Stainless Works long tube headers replace the restrictive factory manifolds on your 2011-2026 Dodge Durango 5.7L with 1-7/8 inch CNC mandrel-bent primary tubes designed to improve exhaust flow and unlock more power from the HEMI V8. Each header is American-made from stainless steel and includes 3 inch slip-fit collectors paired with high-flow catalytic converters, so the system stays emissions-compliant while flowing better than stock. The catted lead pipes connect directly to your factory exhaust or a Stainless Works catback for a clean, complete installation.
Key Features
- 1-7/8 inch CNC mandrel-bent primary tubes for improved exhaust flow over factory manifolds
- 3 inch slip-fit collectors for a secure, leak-resistant connection to the lead pipes
- Integrated high-flow catalytic converters keep the system emissions-compliant while maximizing flow
- American-made stainless steel construction resists corrosion and holds up to sustained exhaust heat
- Lead pipes connect to factory exhaust or a Stainless Works catback system without additional fabrication
Fitment
| Vehicle Application |
|---|
| 2011-2026 Dodge Durango, 5.7L V8 |
Specifications
| Detail | Value |
|---|---|
| Brand | Stainless Works |
| Primary Tube Diameter | 1-7/8 inch |
| Collector Diameter | 3 inch, slip-fit |
| Catalytic Converter | High-flow, integrated in lead pipes |
| Material | Stainless steel |
| Country of Manufacture | United States |
What's Included
- Long tube headers with 1-7/8in primaries (2)
- High-flow catted lead pipes (2)
About Stainless Works
Stainless Works designs and manufactures American-made stainless steel exhaust systems and headers for street and performance applications, engineering each header and exhaust component specifically for the vehicle platform it fits.
Related Parts
- Stainless Works 2011-2025 Durango 5.7L Catback Legend Black Tip
- Stainless Works 11-20 Dodge Durango 5.7L 3in Redline Catback
FAQ
Do these headers require any cutting or modification to install?No. These headers are designed as a direct bolt-on replacement for the factory manifolds on the 2011-2026 Durango 5.7L, using the factory mounting points.
Will these headers pass emissions inspection?The lead pipes include high-flow catalytic converters, so the system remains catted and is designed to be more emissions-friendly than a catless header setup. Check your local and state emissions requirements before installing any aftermarket exhaust component.
Can I connect these headers to my factory exhaust system?Yes. The lead pipes are designed to connect to either the factory exhaust connection point or a Stainless Works catback system.
What sound difference should I expect after installing these headers?Expect a deeper, more resonant HEMI V8 tone due to improved exhaust flow, though the overall volume increase is moderate since the system remains catted.
Do these headers fit both 2WD and AWD Durango models?These headers are designed for the 5.7L V8 engine bay and are not drivetrain-specific, but always confirm ground clearance with your specific trim before installation.
What is the primary tube diameter and why does it matter?The primary tubes measure 1-7/8 inch in diameter, which is sized to improve exhaust velocity and flow over the factory manifold without sacrificing low-end torque.
Is professional installation recommended?Header installation on this platform involves engine bay access and torque-critical fasteners, so professional installation is recommended unless you have experience with exhaust header replacement.
Does this header kit include gaskets and hardware?The kit includes the header assemblies and catted lead pipes. Confirm gasket and hardware inclusion with your order, as exact hardware contents can vary by production run.
Installation Instructions
- Allow the engine and exhaust system to cool completely before beginning work.
- Raise and safely support the vehicle, then remove any components blocking access to the factory exhaust manifolds.
- Disconnect the factory manifolds from the cylinder heads and from the factory exhaust connection point.
- Install the new Stainless Works headers using new gaskets at the cylinder head mounting surface, torquing hardware to factory specification.
- Connect the high-flow catted lead pipes to the header collectors and to your factory exhaust or Stainless Works catback.
- Inspect all slip-fit joints and clamps for a secure, leak-free fit before lowering the vehicle.
- Start the engine and check for exhaust leaks at all new connection points.
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