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Gibson 15-19 GMC Sierra 2500 HD Base 6.0L 3.5in/3in Cat-Back Dual Extreme Exhaust - Stainless Gibson GIB65652
Gibson 15-19 GMC Sierra 2500 HD Base 6.0L 3.5in/3in Cat-Back Dual Extreme Exhaust - Stainless Gibson GIB65652
Gibson 15-19 GMC Sierra 2500 HD Base 6.0L 3.5in/3in Cat-Back Dual Extreme Exhaust - Stainless Gibson GIB65652
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Gibson 15-19 GMC Sierra 2500 HD Base 6.0L 3.5in/3in Cat-Back Dual Extreme Exhaust - Stainless

Gibson
GIB65652
677418024234
Catback
Out of stock
$ 1,806.70

SKU: 65652 | UPC: 677418024234

Gibson 15-19 GMC Sierra 2500 HD Base 6.0L 3.5in/3in Cat-Back Dual Extreme Exhaust - Stainless

This dual bolt-on cat-back exhaust system installs behind the rear tires at an aggressive angle for a powerful tone and bold street presence. Designed for 2011-2019 Chevrolet Silverado 2500 HD 3500 HD and GMC Sierra 2500 HD 3500 HD models with 6.0L V8 it delivers dyno-tested gains of 15-20 horsepower. Crafted from T-409 stainless steel with mandrel-bent tubing Superflow mufflers and polished 4-inch round angle-cut tips it produces a mean performance sound through easy bolt-on installation with no welding needed.

Key Features

  • Dyno-Tuned Performance: Tested for average 15-20 rear-wheel horsepower gains and improved torque for stronger acceleration and towing.
  • Aggressive Exhaust Tone: Gibson Superflow muffler creates a deep powerful rumble that commands attention on the street or highway.
  • Premium Stainless Construction: T-409 stainless steel tubing and spun-welded muffler ensure durability with polished 4-inch dual tips for sharp styling.
  • Bolt-On Design: Direct fit using factory hangers and includes all clamps hardware for straightforward installation in 1-2 hours.
  • Lifetime Limited Warranty: Covers defects in materials and workmanship for long-term peace of mind.

Product Notes

  • Confirm your vehicle's 6.0L V8 engine and submodel using the fitment table below before purchase.
  • Expect noticeable sound increase paired with performance improvements right after install.
  • Ships as a special order item via standard ground freight.

Installation Notes

  • Professional installation recommended.
  • No cutting or welding required uses OEM mounting points and supplied hardware.
  • Compatible with stock catalytic converters and all factory components.

This Part Fits

Year Make Model Submodel
2015-2019 Chevrolet Silverado 2500 HD High Country
2011-2019 Chevrolet Silverado 2500 HD LT
2011-2019 Chevrolet Silverado 2500 HD LTZ
2011-2019 Chevrolet Silverado 2500 HD WT
2015-2019 Chevrolet Silverado 3500 HD High Country
2011-2019 Chevrolet Silverado 3500 HD LT
2011-2019 Chevrolet Silverado 3500 HD LTZ
2011-2019 Chevrolet Silverado 3500 HD WT
2015-2019 GMC Sierra 2500 HD Base
2011-2019 GMC Sierra 2500 HD Denali
2011-2019 GMC Sierra 2500 HD SLE
2011-2019 GMC Sierra 2500 HD SLT
2011-2014 GMC Sierra 2500 HD WT
2015-2019 GMC Sierra 3500 HD Base
2011-2019 GMC Sierra 3500 HD Denali
2011-2019 GMC Sierra 3500 HD SLE
2011-2019 GMC Sierra 3500 HD SLT
2011-2014 GMC Sierra 3500 HD WT

Why Choose Gibson?

  • Over 30 years engineering exhaust systems with dyno-proven results.
  • High-flow mandrel-bent designs reduce backpressure for real power gains.
  • American-made quality with lifetime structural warranty.

Frequently Asked Questions

  • Q: Will this fit my 2016 Chevrolet Silverado 2500 HD LT 6.0L?
    A: Yes it bolts directly to 2011-2019 Silverado 2500 HD LT models with 6.0L V8 using factory hangers.
  • Q: What material is used in the exhaust?
    A: T-409 stainless steel tubing mufflers and polished stainless tips for corrosion resistance and lasting shine.
  • Q: What is the warranty and install time?
    A: Lifetime limited warranty against defects bolt-on install takes 1-2 hours with basic tools no welding.

Shipping & Handling

  • Method: Standard ground freight
  • Availability: In stock - ships same or next business day
  • Packaging: Single oversized box 60in x 20in x 20in
  • Weight: 74 lbs

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