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This Gibson Black Elite cat-back exhaust system replaces the factory exhaust from the catalytic converter back on 2004-2022 Toyota 4Runner 4.0L V6 models for a deep aggressive tone and improved power. Mandrel-bent 2.5-inch stainless steel tubing flows through Superflow mufflers to boost horsepower by up to 12 hp and torque by 14 lb-ft while adding bold style. Direct bolt-on design ensures easy fitment across SR5 Limited TRD Pro Trail and other submodels with dual 4-inch black T-304 tips.
Key Features
- 2.5-Inch Mandrel-Bent Tubing: T-409 stainless steel ensures smooth exhaust flow minimal restriction and long-lasting strength against rust.
- Black Elite T-304 Tips: 4-inch round slash-cut tips with exclusive premium black finish for durable style that resists corrosion and complements modern 4Runner looks.
- Superflow Muffler: Patented straight-through design produces vigorous deep exhaust note reduces backpressure for noticeable throttle response and power on 4.0L V6.
- Made in USA: Precision-engineered in Gibson facilities with quality controls that deliver consistent fit and performance exceeding factory setup.
- Bolt-on system uses factory hangers and mounts no welding or cutting required.
- High-grade stainless construction built to handle off-road abuse.
Fitment
| Years | Make | Model | Application |
|---|---|---|---|
| 2003-2024 | Toyota | 4Runner | 4.0L |
Specifications
| Manufacturer | Gibson |
|---|---|
| Manufacturer Part Number | 618816B |
| Product Type | Catback |
| Fitment Type | Vehicle specific |
| Tubing Diameter | 2.50-in. 409 Stainless mandrel bent tubing. |
| Tip Description | 4in. Dual Black T304 Stainless Rolled Slash- Cut Tip. |
| Tip Specification | Inlet Inlet 2.50in., Outlet 4.0 in., L-9in. |
| Muffler Description | Baffled &, Chambered Design, No internal Packing, Minimal Interior Drone, Aggressive Sound |
| Muffler Dimension | 6 in. Round, 2.50 in. Offset Inlet, 2.50 in. Offset Outlet, L-24 in. |
| Additional Description | Includes all hardware and factory style hangers for easy bolt on installation. |
| Exit Position | Exits behind rear tire. |
| Footnote | Will not fit the Limited Model |
| Warranty | Lifetime Limited Warranty |
What's Included
- One new Gibson catback in the exact configuration identified by manufacturer part number 618816B
- 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.
Related Gibson Products
- Gibson 04-22 Toyota 4Runner 4.0L 2.5in Cat-Back Dual Sport Exhaust - Stainless
- Gibson 04-22 Toyota 4Runner SR5 4.0L 2.5in Cat-Back Single Exhaust - Black Elite
- Gibson 04-22 Toyota 4Runner LImited 4.0L 2.5in Cat-Back Single Exhaust - Aluminized
Browse the Gibson collection for related exhaust systems and components.
Frequently Asked Questions
Which vehicles fit Gibson GIB618816B?
Gibson GIB618816B is listed for 2003-2024 Toyota 4Runner. 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 GIB618816B?
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 GIB618816B?
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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