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Gibson 15-18 Chevrolet Silverado 1500 LS 5.3L 3in/2.25in Cat-Back Dual Split Exhaust - Aluminized Gibson GIB5657
Gibson 15-18 Chevrolet Silverado 1500 LS 5.3L 3in/2.25in Cat-Back Dual Split Exhaust - Aluminized Gibson GIB5657
Gibson 15-18 Chevrolet Silverado 1500 LS 5.3L 3in/2.25in Cat-Back Dual Split Exhaust - Aluminized Gibson GIB5657
Gibson 15-18 Chevrolet Silverado 1500 LS 5.3L 3in/2.25in Cat-Back Dual Split Exhaust - Aluminized Gibson GIB5657
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Gibson 15-18 Chevrolet Silverado 1500 LS 5.3L 3in/2.25in Cat-Back Dual Split Exhaust - Aluminized

Gibson
GIB5657
677418026771
Catback
Out of stock
$ 1,431.85

SKU: 5657 | UPC: 677418026771

Gibson 2014-2018 Chevrolet Silverado 1500 & GMC Sierra 1500 5.3L 3in/2.25in Cat-Back Dual Split Exhaust - Aluminized

This Gibson cat-back exhaust system delivers an aggressive throaty sound and eye-catching dual split rear exit for 2014-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks with 5.3L engines. It reduces backpressure to boost torque and horsepower by an average of 20 HP and 18 lb-ft. Mandrel-bent aluminized steel tubing ensures smooth flow and direct bolt-on fitment with no welding needed.

Key Features

  • Aggressive Sound: Produces deep throaty exhaust note that intensifies under towing for enhanced driving experience
  • Performance Gains: Dyno-tested increases of 20 HP and 18 lb-ft torque by minimizing restrictions
  • Dual Stainless Tips: 4" x 7" polished 304 stainless steel angle-cut tips exit straight out the rear for bold styling
  • Easy Bolt-On Install: Includes all hardware and hangers for direct replacement in under 2 hours
  • Versatile Compatibility: Fits most factory bumpers, roll pans, and trailer hitches without modifications

Product Notes

  • Exhaust tone gets louder during towing to signal increased power output
  • Aluminized steel construction resists corrosion for long-lasting durability
  • MPN 5657 designed specifically for 5.3L V8 applications

Installation Notes

  • Professional installation recommended.
  • Bolt-on design clamps to factory cat-back with no cutting or welding required
  • Uses OEM-style hangers and brackets for secure mounting

This Part Fits

Year Make Model Submodel
2016-2018 Chevrolet Silverado 1500 Custom
2014-2018 Chevrolet Silverado 1500 High Country
2015-2018 Chevrolet Silverado 1500 LS
2014-2018 Chevrolet Silverado 1500 LT
2014-2018 Chevrolet Silverado 1500 LTZ
2015-2018 Chevrolet Silverado 1500 SSV
2014-2018 Chevrolet Silverado 1500 WT
2014-2018 GMC Sierra 1500 Base
2014-2018 GMC Sierra 1500 Denali
2014-2018 GMC Sierra 1500 SLE
2014-2018 GMC Sierra 1500 SLT

Why Choose Gibson?

  • Decades of exhaust engineering for GM trucks
  • Mandrel-bent tubing for unrestricted flow
  • Lifetime limited warranty on workmanship and materials

Frequently Asked Questions

  • Q: Will this fit my 2016 Silverado 1500 LS 5.3L with stock bumper?
    A: Yes, it bolts directly to factory mid-pipes and clears stock bumpers, roll pans, and most hitches on listed 2014-2018 Silverado 1500 and Sierra 1500 models
  • Q: What material is used for the pipes and tips?
    A: 16-gauge aluminized steel pipes paired with polished 304 stainless steel tips for rust resistance and shine
  • Q: What is the sound level and warranty?
    A: Aggressive throaty tone backed by Gibson lifetime limited warranty against defects

Shipping & Handling

  • Method: Standard ground shipping
  • Availability: In stock - ships same or next business day
  • Packaging: Securely boxed at 42 x 18 x 16 inches
  • Weight: 58 lbs

Request For Information

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