
Specifications
- Brand
- Gibson
- Part #
- 615630
- UPC
- 677418027020

Gibson 14-18 GMC Sierra 1500 Denali 6.2L 3.5in Cat-Back Single Exhaust - Stainless
$770.09
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Fits 2014-2018 Chevrolet Silverado 1500. This Gibson cat-back exhaust uses 3.5in stainless steel tubing for improved low-end torque and horsepower.
Key Features
- Fits 2014-2018 Chevrolet Silverado 1500 and 2014-2018 GMC Sierra 1500.
- Features 3.5-inch diameter, mandrel-bent stainless steel tubing for improved exhaust flow.
- The baffled and chambered Superflow™ muffler is designed for minimal interior drone and an aggressive exterior sound.
- Exhaust exits behind the rear tire with polished stainless steel slash-cut tips.
- Includes hardware and factory-style hangers for a direct bolt-on installation with no welding required.
- Dyno-tested to show average gains of 18-21 horsepower and 20-22 lb-ft of torque at low-end RPMs.
⚠️ 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
This Gibson cat-back exhaust system is built with 3.5-inch diameter, mandrel-bent stainless steel tubing, which helps your 2014-2018 Chevrolet Silverado 1500 breathe easier. Mandrel bending ensures the tubing maintains its diameter throughout the bends, allowing for a smoother flow of exhaust gases. This improved flow is key to unlocking better acceleration, towing, and passing power, especially at lower RPMs where you need it most for hauling or climbing hills. Dyno tests show gains of 18-21 horsepower and 20-22 lb-ft of torque, primarily in the 1800 to 3000 RPM range.
Designed for a hassle-free, bolt-on installation, this system uses factory-style hangers and includes all necessary hardware, meaning no welding is required. The system features a baffled and chambered muffler with no internal packing, which Gibson calls their Superflow™ muffler. This design creates an aggressive sound outside the truck while minimizing interior drone, making for a more comfortable driving experience. The exhaust exits behind the rear tire with polished stainless steel slash-cut tips for a clean, professional look.
This Gibson exhaust is constructed from durable stainless steel, offering a lifetime limited warranty for peace of mind. It's a solid option if you're looking to enhance your truck's performance and sound without sacrificing cab comfort.
Specifications
- Brand
- Gibson
- Manufacturer Part #
- 615630
- UPC
- 677418027020
Frequently Asked Questions
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