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This Gibson Headers GP311S-C are dyno-tuned stainless steel exhaust headers with 1-1/2 inch 16-gauge tubing and ceramic coating for 2003-2008 Dodge Ram 1500 5.7L models including SLT Laramie ST Sport SXT TRX4 plus select Ram 2500 3500. These headers replace factory manifolds using the stock crossover pipe to boost horsepower and torque at low and mid-range RPM for better highway performance. They improve engine breathing reduce operating temperatures and fit street or off-road lowered or raised trucks.
Key Features
- 1-1/2in 16 Gauge Stainless Steel: Mandrel-bent tubing ensures smooth exhaust flow with durable construction that resists warping.
- Ceramic Coating: Reduces underhood heat for cooler engine temperatures and protects against corrosion for long-lasting performance.
- Direct Bolt-On Fit: Uses OEM-style connections and stock crossover pipe with no welding required for easy replacement of factory manifolds.
- 3/8in Laser Cut Port Flanges: Heavy-duty flanges prevent warping or leaking with premium gaskets and hardware included.
- 16-gauge stainless steel tubing with 1-1/2 inch primaries and ceramic coating for heat reduction and corrosion resistance.
- Dyno-Tuned Design: Engineered for maximum usable horsepower and torque gains at low and mid-range RPM where you drive most often on highways.
Fitment
| Years | Make | Model | Application |
|---|---|---|---|
| 2003-2008 | Ram | 1500 | 5.7L |
| 2004-2005 | Ram | 2500 | 5.7L |
| 2004-2005 | Ram | 3500 | 5.7L |
Specifications
| Manufacturer | Gibson |
|---|---|
| Manufacturer Part Number | GP311S-C |
| Product Type | Headers &, Manifolds |
| Fitment Type | Vehicle specific |
| Tubing Diameter | 1.50-in. Stainless 16-gauge mandrel bent tubing. |
| Header Features | Short Tube Style Header, Direct Fit, Bolt-On, Heavy duty laser cut flanges, Premium gaskets and all hardware included, No Welding, Attaches to the OEM crossover pipe |
| Additional Description | 2wd |
| Footnote | Emission Compliant Carb EO# D-411-12, 2WD |
| Warranty | Lifetime Limited Warranty |
What's Included
- One new Gibson headers &, manifolds in the exact configuration identified by manufacturer part number GP311S-C
- Hardware and accessories only when supplied for this exact part number
About Gibson
Gibson develops vehicle-specific and universal exhaust components for street, truck, SUV, and performance applications. Selection and installation requirements remain exact-part-number specific.
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Frequently Asked Questions
Which vehicles fit Gibson GIBGP311S-C?
Gibson GIBGP311S-C is listed for 2003-2008 Ram 1500, 2004-2005 Ram 2500, and 2004-2005 Ram 3500. Confirm the exact engine, trim, drivetrain, body or cab configuration, exhaust layout, and every application note before ordering.
What should I verify before ordering Gibson GIBGP311S-C?
Match the exact part number, system type, material, finish, tubing and connection diameters, exhaust configuration, package contents, and current manufacturer notes shown in this listing.
What should be checked when installing Gibson GIBGP311S-C?
Verify all interfaces, hanger positions, tip and body clearances, clamp or fastener torque, leak-free operation, and local emissions requirements. Reinspect the system after its first heat cycle.
Installation Instructions
Follow the current Gibson instructions and vehicle service information for this exact part number. Work on a cool exhaust, support the vehicle safely, confirm all interfaces and clearances, align the system before final tightening, test for leaks, and inspect the installation again after the first heat cycle.
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