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This Gibson Super Truck Exhaust System delivers a loud deep powerful sound through 2.5-inch stainless tubing and dual polished tips exiting in front of the rear tires. Designed for 1999-2007 Chevrolet Silverado 1500 Classic and 1999-2006 GMC Sierra 1500 select V6 models including Base LS LT plus select 2500 models. Expect race rumble tone improved acceleration 10-15 horsepower gains and 15-20 lb-ft torque increases from dyno testing with hassle-free bolt-on installation.
Key Features
- Deep Aggressive Sound: Produces race-inspired rumble with dual stainless tips positioned ahead of rear tires for truck-tough presence on the road.
- Proven Power Gains: Dyno-tested average increases of 10-15 HP and 15-20 lb-ft torque for quicker throttle response and stronger pull.
- Stainless Steel Build: Mandrel-bent 2.5-inch tubing with polished 3.5-inch tips resists corrosion ensures long-lasting shine and durability.
- Bolt-On Design: Direct fit using factory mounts and hangers no cutting welding or fabrication needed for easy weekend install.
- Hassle-free bolt-on process completes in 1-2 hours with basic tools.
- 30+ years crafting exhaust systems tuned for maximum flow and tone.
Fitment
| Years | Make | Model | Application |
|---|---|---|---|
| 2002-2006 | Chevrolet | Silverado 1500 | 4.3L, Extended Cab, Short Bed |
| 2002-2006 | Chevrolet | Silverado 1500 | 4.8L, Crew Cab, Short Bed |
| 2002-2006 | Chevrolet | Silverado 1500 | 4.8L, Extended Cab, Short Bed |
| 2002-2006 | Chevrolet | Silverado 1500 | 5.3L, Crew Cab, Short Bed |
| 2002-2006 | Chevrolet | Silverado 1500 | 5.3L, Extended Cab, Short Bed |
| 2007 | Chevrolet | Silverado 1500 | Classic, 4.3L, Extended Cab, Short Bed |
| 2007 | Chevrolet | Silverado 1500 | Classic, 4.8L, Crew Cab, Short Bed |
| 2007 | Chevrolet | Silverado 1500 | Classic, 4.8L, Extended Cab, Short Bed |
| 2007 | Chevrolet | Silverado 1500 | Classic, 5.3L, Crew Cab, Short Bed |
| 2007 | Chevrolet | Silverado 1500 | Classic, 5.3L, Extended Cab, Short Bed |
| 2002-2006 | GMC | Sierra 1500 | 4.3L, Extended Cab, Short Bed |
| 2002-2006 | GMC | Sierra 1500 | 4.8L, Crew Cab, Short Bed |
| 2002-2006 | GMC | Sierra 1500 | 4.8L, Extended Cab, Short Bed |
| 2002-2006 | GMC | Sierra 1500 | 5.3L, Crew Cab, Short Bed |
| 2002-2006 | GMC | Sierra 1500 | 5.3L, Extended Cab, Short Bed |
| 2007 | GMC | Sierra 1500 | Classic, 4.3L, Extended Cab, Short Bed |
| 2007 | GMC | Sierra 1500 | Classic, 4.8L, Crew Cab, Short Bed |
| 2007 | GMC | Sierra 1500 | Classic, 4.8L, Extended Cab, Short Bed |
| 2007 | GMC | Sierra 1500 | Classic, 5.3L, Crew Cab, Short Bed |
| 2007 | GMC | Sierra 1500 | Classic, 5.3L, Extended Cab, Short Bed |
Specifications
| Manufacturer | Gibson |
|---|---|
| Manufacturer Part Number | 65518 |
| Product Type | Catback |
| Fitment Type | Vehicle specific |
| Tubing Diameter | 2.50-in. 409 Stainless mandrel bent tubing. |
| Tip Description | 6in. Polished T304 Stainless, Oblong, Slash-Cut Tip, Clamp on. |
| Tip Specification | Outlet 6 x 2.75 in., L-6 in. |
| Muffler Description | Baffled &, Chambered Design, No internal Packing, Minimal Interior Drone, Aggressive Sound |
| Muffler Dimension | 7 in. Round Body, 3.00 in. Center Inlet, 2.50 in. Dual Outlets, L-19 in. |
| Additional Description | Includes all hardware and factory style hangers for easy bolt on installation. |
| Exit Position | Exits In Front of Rear Tire. |
| Warranty | Lifetime Limited Warranty |
What's Included
- One new Gibson catback in the exact configuration identified by manufacturer part number 65518
- 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 GIB65518?
Gibson GIB65518 is listed for 2002-2007 Chevrolet Silverado 1500, and 2002-2007 GMC Sierra 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 GIB65518?
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 GIB65518?
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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