
Specifications
- Brand
- Gibson
- Part #
- 615520
- UPC
- 677418001488

Gibson 99-01 Chevrolet Silverado 1500 LS 4.3L 3in Cat-Back Single Exhaust - Stainless
$642.68
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Fits 1999-2001 Chevrolet Silverado 1500. This Gibson stainless steel cat-back exhaust improves torque and horsepower with a clean, single exit behind the rear tire.
Key Features
- Fits 1999-2001 Chevrolet Silverado 1500, 1999-2000 Chevrolet Silverado 2500, 1999-2001 GMC Sierra 1500, and 1999-2000 GMC Sierra 2500.
- Polished stainless steel construction resists corrosion and provides a clean look.
- Mandrel-bent tubing ensures consistent pipe diameter for improved exhaust flow.
- Superflow™ muffler is baffled and chambered for better performance and minimal interior drone.
- Single exit behind the rear tire for a classic truck appearance.
- Includes hardware and factory-style hangers for a straightforward bolt-on installation.
⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more
Product Details
If you're looking to get more out of your 1999-2001 Chevrolet Silverado 1500 LS with the 4.3L engine, especially for tasks like towing or hauling, this Gibson cat-back exhaust system is a solid choice. It's designed to help your truck accelerate better, climb hills with more power, and gain more passing ability on the highway. Gibson's Superflow muffler is baffled and chambered, meaning it works without internal packing, which helps it flow better and produce a more aggressive sound outside the truck while keeping things quieter inside the cab. You can expect noticeable gains in low-end torque and horsepower, typically in the range of 15-20 lb-ft of torque and 10-15 horsepower, especially between 1800 and 3000 RPM, which is perfect for everyday driving and work use.
This system is constructed from polished stainless steel, including the mandrel-bent tubing and the slash-cut tip, which means it's built to resist corrosion and look good for a long time. Installation is straightforward because it uses factory-style hangers and includes all the necessary hardware for a bolt-on process, so no welding is required. This makes for a hassle-free installation that results in a professional appearance. The exhaust exits behind the rear tire for a clean, classic truck look.
This Gibson cat-back system is backed by a Lifetime Limited Warranty, giving you peace of mind with your purchase. While it's designed for a direct bolt-on installation, always refer to the manufacturer's instructions for any specific details or torque recommendations.
Specifications
- Brand
- Gibson
- Manufacturer Part #
- 615520
- UPC
- 677418001488
Frequently Asked Questions
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