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This Gibson 615638 cat-back single side exhaust fits 2021-2022 Chevrolet Tahoe and GMC Yukon 5.3L 2WD/4WD models. Improves acceleration hill climbing towing and passing power with dyno-proven maximum torque and horsepower at low-end 1800-3000 RPM. Delivers 10-15 horsepower gains and 15-20 lb-ft torque increase while staying quieter in the cab than other performance exhaust systems.
Key Features
- Exact Gibson catback configuration
- Application and installation requirements are part-number specific
- Built for automotive exhaust service
Fitment
| Years | Make | Model | Application |
|---|---|---|---|
| 2021-2022 | Chevrolet | Tahoe | LS |
| 2021-2022 | Chevrolet | Tahoe | LT |
| 2021-2022 | Chevrolet | Tahoe | PPV |
| 2021-2022 | Chevrolet | Tahoe | Premier |
| 2021-2022 | Chevrolet | Tahoe | RST |
| 2021-2022 | Chevrolet | Tahoe | SSV |
| 2021-2022 | Chevrolet | Tahoe | Z71 |
| 2021-2022 | GMC | Yukon | AT4 |
| 2021-2022 | GMC | Yukon | SLE |
| 2021-2022 | GMC | Yukon | SLT |
Specifications
| Manufacturer | Gibson |
|---|---|
| Manufacturer Part Number | 615638 |
| Product Type | Catback |
| Fitment Type | Vehicle specific |
What's Included
- One new Gibson catback in the exact configuration identified by manufacturer part number 615638
- 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 GIB615638?
Gibson GIB615638 is listed for 2021-2022 Chevrolet Tahoe, and 2021-2022 GMC Yukon. 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 GIB615638?
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 GIB615638?
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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