Gibson 14-18 GMC Sierra 1500 Base 5.3L 3in/2.25in Cat-Back Dual Sport Exhaust - Stainless Gibson GIB65656
Gibson 14-18 GMC Sierra 1500 Base 5.3L 3in/2.25in Cat-Back Dual Sport Exhaust - Stainless Gibson GIB65656
Gibson 14-18 GMC Sierra 1500 Base 5.3L 3in/2.25in Cat-Back Dual Sport Exhaust - Stainless Gibson GIB65656
Gibson 14-18 GMC Sierra 1500 Base 5.3L 3in/2.25in Cat-Back Dual Sport Exhaust - Stainless Gibson GIB65656
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Gibson 14-18 GMC Sierra 1500 Base 5.3L 3in/2.25in Cat-Back Dual Sport Exhaust - Stainless

Gibson
GIB65656
677418026795
Catback
1 Units In Stock - Ships Next Business Day
$ 1,569.62
$ 1,569.62

SKU: 65656 | UPC: 677418026795

Gibson 14-18 GMC Sierra 1500 Base 5.3L 3in/2.25in Cat-Back Dual Sport Exhaust - Stainless

This Gibson cat-back exhaust system delivers a deep authoritative tone while preserving towing capability by exiting behind the rear tire. Designed for 2014-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks with 4.3L V6, 5.3L V8 or 6.2L V8 engines across multiple cab styles. Dyno-tested gains of 18-20 horsepower and 15-20 lb-ft torque with hassle-free bolt-on installation and no welding needed.

Key Features

  • Bolt-On Installation: Direct fit using factory mounting points for professional results in under 2 hours on average, no cutting or welding required.
  • Performance Gains: Dyno proven increases of 18-20 HP and 15-20 lb-ft torque across the powerband for stronger acceleration and towing.
  • Exhaust Tone: Superflow muffler produces powerful deep rumble outside with zero drone or buzzing inside the cab for daily driving comfort.
  • Construction: T-409 stainless steel 3-inch mandrel-bent tubing reduces to 2.25-inch side-exit pipes with 4-inch polished stainless angle-cut tips for durability and style.
  • Warranty: Lifetime Limited Warranty covers structural defects for peace of mind on every mile driven.

Product Notes

  • Side-exit design behind rear tire enhances ground clearance and maintains trailer hitch access without restrictions.
  • Manufactured in the USA with precision robotics for consistent fit and corrosion-resistant finish.
  • Special order item, confirm stock before purchase for fastest delivery.

Installation Notes

  • Professional installation recommended.
  • Uses existing factory hangers and clamps for simple bolt-on process.
  • Compatible with all OEM fuel tanks and spare tire configurations.

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?

  • 30+ years engineering exhaust systems for trucks with proven dyno results.
  • USA-made stainless components built to last under heavy towing and off-road use.
  • Every system tested for exact fitment on OEM vehicles before release.

Frequently Asked Questions

  • Q: Will this fit my 2016 GMC Sierra 1500 Base with 5.3L V8 Crew Cab?
    A: Yes, confirmed fit for all cab styles including Crew, Double and Regular Cab on 2014-2018 Sierra 1500 Base models with 4.3L, 5.3L or 6.2L engines.
  • Q: What material is used and does it rust?
    A: T-409 stainless steel tubing and muffler with polished stainless tips resists corrosion for long-term shine and performance in all weather conditions.
  • Q: What does the lifetime warranty cover and is installation easy?
    A: Covers structural defects forever. bolt-on design installs with basic tools in 1-2 hours using factory hardware, no welding or fabrication needed.

Shipping & Handling

  • Method: Standard Ground
  • Availability: In stock - ships same or next business day
  • Packaging: Ships in two heavy-duty boxes (48in x 14in x 12in and 36in x 14in x 12in)
  • Weight: 58 lbs

Request For Information

Have questions about Gibson 14-18 GMC Sierra 1500 Base 5.3L 3in/2.25in Cat-Back Dual Sport Exhaust - Stainless? Fill out the form below and we'll get back to you by the next business day.
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