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This Gibson cat-back exhaust system transforms your 2019-2023 Ram 1500 5.7L with an aggressive throaty sound and bold black elite styling. Engineered for precise fitment on models like Laramie Big Horn Limited and Rebel it reduces backpressure for average gains of 15-20 horsepower and more torque. Black ceramic tips exit straight out the back compatible with factory bumpers for a seamless upgrade.
Key Features
- 2.5in Mandrel-Bent Tubing: 409 stainless steel construction decreases backpressure boosts torque and horsepower while ensuring durability against corrosion.
- Black Ceramic 4in Tips: Straight-out-the-back positioning integrates with stock bumpers providing a aggressive blacked-out look.
- Performance Gains: Tested average increases of 15 rwhp and 18 ft-lbs torque verified on dyno for Ram 1500 5.7L V8.
- 409 stainless steel tubing with black ceramic coated 4in tips for heat resistance and black elite appearance resists rust and maintains shine.
- Dual Split Rear Exit Design: Delivers throaty exhaust note louder under towing for enhanced presence on Big Horn Laramie or Rebel trims.
- GPX Muffler Technology: Proprietary Gibson muffler design produces deep resonant tone without drone for daily driving or hauling.
Fitment
| Years | Make | Model | Application |
|---|---|---|---|
| 2019-2027 | Ram | 1500 | 5.7L, Crew Cab w/67.4 in./5 ft. 7.4 in. Bed |
| 2019-2021 | Ram | 1500 | 5.7L, Extended Cab w/76.3 in./6 ft. 4.3 in. Bed |
| 2023-2027 | Ram | 1500 | 5.7L, Extended Cab w/76.3 in./6 ft. 4.3 in. Bed |
Specifications
| Manufacturer | Gibson |
|---|---|
| Manufacturer Part Number | 66570B |
| Product Type | Catback |
| Fitment Type | Vehicle specific |
| Tubing Diameter | 2.50-in.409 Stainless mandrel bent tubing. |
| Tip Description | 5in. Black Ceramic Coated T304 Stainless Rolled Slash-Cut Tip. Clamp on. |
| Tip Specification | Inlet 2.50 in., Outlet 5.0 in., L-12 in. |
| Muffler Dimension | 4 x 9 x 13 in. Oval Body, 3.00 in. Center Inlet, 2.5 in. Dual Outlet. |
| Additional Description | Includes all hardware and factory style hangers for easy bolt on installation. |
| Exit Position | Exit Is Straight Out The Back. |
| Footnote | Fits with Factory Dual Exhaust |
| Warranty | Lifetime Limited Warranty |
What's Included
- One new Gibson catback in the exact configuration identified by manufacturer part number 66570B
- 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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- Gibson 11-18 Ram 1500 Big Horn 5.7L 2.5in Cat-Back Dual Split Exhaust - Stainless
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Frequently Asked Questions
Which vehicles fit Gibson GIB66570B?
Gibson GIB66570B is listed for 2019-2027 Ram 1500. 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 GIB66570B?
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 GIB66570B?
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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