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Gibson 615623

Swept-Side Cat-Back Exhaust 2011-15 Chevy Silverado/GMC Sierra 2500HD/3500 6.6L Diesel

Gibson 615623
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Expires on August 31, 2017

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462-615623

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Estimated ship date 08/25/17 if Ordered Today
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Gibson 615623 Swept-Side Cat-Back Exhaust 2011-15 Chevy Silverado/GMC Sierra 2500HD/3500 6.6L Diesel $393.99
Swept-Side Cat-Back Exhaust
  • 2011-17 Chevy Silverado/GMC Sierra 2500HD/3500 6.6L Diesel
  • 2WD/4WD
  • Extended Cab, Standard Bed
  • Crew Cab, Standard & Long Bed
  • 4" Tailpipe, 6" Tip

  • Gibson 615623 Details

    Chevy Silverado/GMC Sierra

  • 4-in. mandrel bent stainless tubing.
  • Muffler Delete Pipe Included
  • 6in. Polished T304 Stainless Round Tip; Weld On.
  • Exits Behind Rear Tire.
  • Includes all hardware and factory style hangers for easy bolt on installation.

  • Specifications:

    Inlet Size (in.)
    4
    Material
    Stainless Steel
    Outlet Size (in.)
    6
    Exit Position
    Single Rear
    Exhaust Type
    Single
    Exit Style
    Turn Out
    Tip Size
    NA
    System Type
    Cat Back
    Manufacturer's Part Number:
    615623

    Gibson GM Cat-Back Exhaust Systems improve exhaust flow and provide more power from 2000-4000 RPM than other exhaust systems. Power-robbing turbulence exists at every point that an exhaust gas "pulse" enters or exits exhaust components. Gibson Systems minimize turbulence in two ways: patented Superflow™ technology assists exhaust gas in its flow out, and slip-fit connections reduce backpressure at the exhaust's joining points (i.e. each pipe fits into the larger opening of the next pipe).

    The quietest system Gibson offers, these single swept-side exhausts are stainless steel and produce a deep, throaty tone outside with only a slight increase over stock sound inside. Gibson Exhaust Systems feature mandrel-bent tubing for consistent flow throughout the system with the least restriction possible. Superflow™ Mufflers have a chambered/baffled structure to deliver dramatically higher exhaust flow compared to packed or screened mufflers. Too large a pipe without the proper muffler decreases low-end torque but increases top-end power. Gibson builds their exhaust systems to flow as efficiently as possible. Typical gains average 15-20 horsepower. Swept-side systems are engineered and tested to improve acceleration, towing, passing, and hill climbing. Fuel economy may also improve as the engine becomes more efficient.

    Features
  • Patented Superflow™ Technology
  • Superior Horsepower Gains
  • Increased Fuel Economy
  • Does Gibson 615623 fit your vehicle?

    Narrow Results

    2015-2016 GMC SIERRA 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: SLT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2013 GMC SIERRA 3500 HD

    • CC: 6599
    • Fitment_Note: Will Fit Dually Models
    • Liter: 6.6
    • SubModel: SLT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2014-2016 GMC SIERRA 3500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: DENALI
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2014 CHEVROLET SILVERADO 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: LT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2014 GMC SIERRA 3500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: SLT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2016 GMC SIERRA 3500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2011-2012 GMC SIERRA 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: DENALI
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2011-2012 CHEVROLET SILVERADO 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: LTZ
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2013 CHEVROLET SILVERADO 2500 HD

    • CC: 6599
    • Fitment_Note: Will Fit Dually Models
    • Liter: 6.6
    • SubModel: LTZ
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2015-2016 CHEVROLET SILVERADO 3500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: LTZ
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2015-2016 CHEVROLET SILVERADO 3500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: WT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2015 GMC SIERRA 3500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: WT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2013 CHEVROLET SILVERADO 2500 HD

    • CC: 6599
    • Fitment_Note: Will Fit Dually Models
    • Liter: 6.6
    • SubModel: LT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2013 GMC SIERRA 2500 HD

    • CC: 6599
    • Fitment_Note: Will Fit Dually Models
    • Liter: 6.6
    • SubModel: DENALI
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2015-2016 CHEVROLET SILVERADO 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: LTZ
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2011-2013 CHEVROLET SILVERADO 3500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: LT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2015-2016 CHEVROLET SILVERADO 3500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: LT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2013 GMC SIERRA 3500 HD

    • CC: 6599
    • Fitment_Note: Will Fit Dually Models
    • Liter: 6.6
    • SubModel: SLE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2014 CHEVROLET SILVERADO 3500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: WT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2014 GMC SIERRA 3500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: WT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2011-2012 CHEVROLET SILVERADO 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: LT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2015-2016 GMC SIERRA 3500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: SLT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2011-2012 GMC SIERRA 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: SLE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2014 GMC SIERRA 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: WT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2015-2016 CHEVROLET SILVERADO 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: WT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2014 CHEVROLET SILVERADO 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: LTZ
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2014 GMC SIERRA 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: SLT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2015-2016 GMC SIERRA 3500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: SLE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2014 GMC SIERRA 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: SLE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2014 CHEVROLET SILVERADO 3500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: LT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2014-2016 GMC SIERRA 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: DENALI
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2015-2016 GMC SIERRA 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2011-2012 GMC SIERRA 3500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: SLT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2013 GMC SIERRA 2500 HD

    • CC: 6599
    • Fitment_Note: Will Fit Dually Models
    • Liter: 6.6
    • SubModel: WT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2015-2016 CHEVROLET SILVERADO 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: HIGH COUNTRY
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2015-2016 CHEVROLET SILVERADO 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: LT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2011-2013 CHEVROLET SILVERADO 3500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: WT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2013 GMC SIERRA 3500 HD

    • CC: 6599
    • Fitment_Note: Will Fit Dually Models
    • Liter: 6.6
    • SubModel: WT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2014 CHEVROLET SILVERADO 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: WT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2013 GMC SIERRA 2500 HD

    • CC: 6599
    • Fitment_Note: Will Fit Dually Models
    • Liter: 6.6
    • SubModel: SLE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2011-2012 GMC SIERRA 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: WT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2011-2012 GMC SIERRA 3500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: SLE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2013 CHEVROLET SILVERADO 2500 HD

    • CC: 6599
    • Fitment_Note: Will Fit Dually Models
    • Liter: 6.6
    • SubModel: WT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2014 GMC SIERRA 3500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: SLE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2015-2016 CHEVROLET SILVERADO 3500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: HIGH COUNTRY
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2014 CHEVROLET SILVERADO 3500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: LTZ
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2013 GMC SIERRA 2500 HD

    • CC: 6599
    • Fitment_Note: Will Fit Dually Models
    • Liter: 6.6
    • SubModel: SLT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2011-2012 GMC SIERRA 3500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: WT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2013 GMC SIERRA 3500 HD

    • CC: 6599
    • Fitment_Note: Will Fit Dually Models
    • Liter: 6.6
    • SubModel: DENALI
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2011-2012 CHEVROLET SILVERADO 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: WT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2015-2016 GMC SIERRA 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: SLE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2011-2012 GMC SIERRA 3500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: DENALI
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2011-2013 CHEVROLET SILVERADO 3500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: LTZ
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    2011-2012 GMC SIERRA 2500 HD

    • CC: 6599
    • Liter: 6.6
    • SubModel: SLT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )
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