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Gibson 15-18 GMC Yukon XL SLE 5.3L 2.25in Cat-Back Single Exhaust - Stainless

SKU: GIB615637

Exhaust Systems

GIB Cat-Back - Single...

Gibson 15-18 GMC Yukon XL SLE 5.3L 2.25in Cat-Back Single Exhaust - Stainless

SKU: GIB615637

Exhaust Systems

GIB Cat-Back - Single...

A$1,703.94
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.
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Description

Gibson Single Side Exhaust is perfect for improved acceleration, maximum hill climbing, towing and passing power. This is our best performing Exhaust System. Exits behind the rear tire. Quieter in the cab than any other Performance Exhaust. Dyno test results show it makes maximum torque and horsepower at low-end (1800 to 3000 RPM). Horsepower gains average 18-21 and 20-22lb-ft of increase torque. Hassle free, bolt-on installation with professional looking results. No welding required. Backed by a Lifetime Limited Warranty.

Part Type

Exhaust System Kit

Data: v4.2 - Upd: 2026-10-13 16:43:27

Features

  • Baffled/Chambered Muffler; No Internal Packing
  • Incl. Hardware/Factory Style Hangers For Easy Bolt-On Install
  • Lifetime Limited Warranty
  • Minimal Interior Drone - Aggressive Sound
  • Polished Stainless Steel Slash-Cut Tips
  • Stainless Steel Mandrel Bent Tubing
  • Superflow™ Muffler

Specifications

Product Attributes - UPC
677418028256
Product Attributes - Brand
Gibson Performance Exhaust
Product Attributes - Tip Cut
Slant
Product Attributes - Quantity
Sold as a kit.
Product Attributes - Part Type
Exhaust Systems
Product Attributes - Tip Shape
Round
Product Attributes - Tip Finish
Polished
Product Attributes - Exhaust Type
Single
Product Attributes - Product Line
Gibson Single Exhaust Systems
Product Attributes - System Style
Cat-back
Product Attributes - Tip Included
Yes
Product Attributes - Tip Material
304 stainless steel
Product Attributes - Tip Quantity
1
Product Attributes - Exit Location
Passenger side
Product Attributes - Muffler Style
Baffled and chambered
Product Attributes - System Finish
Natural
Product Attributes - Inlet Quantity
1
Product Attributes - Muffler Finish
Natural
Product Attributes - Tip Edge Style
Rolled edge
Product Attributes - System Material
409 stainless steel
Product Attributes - Muffler Included
Yes
Product Attributes - Muffler Material
409 stainless steel
Product Attributes - Muffler Quantity
One
Product Attributes - Hardware Included
Yes
Product Attributes - Special Attention
It is illegal to install parts or components that bypass, defeat, or render inoperative the manufacturers’ technology and design necessary to reduce vehicle emissions to meet state and federal Clean Air Act standards.
Product Attributes - Muffler Configuration
Single inlet/Single outlet
Product Attributes - Tip Outlet Size (in.)
4.00
Product Attributes - Tailpipe Diameter (in.)
2.25 in.
Product Attributes - Manufacturer's Part Number
615637
Product Attributes - Catalytic Converter(s) Included
No
Product Attributes - Intermediate Pipe Diameter (in.)
2.25 in.

Reference Information

Brand Name/s Gibson
StreetFX SKU gib615637
SFX Item ID 4083854
Supplier Item Code 4083854
Manufacturer SKU 615637
Manufacturer UPC 677418028256
Alternative References 5.3L, 2.25in

Compatibility

Application Data
  • UniversalNo
    MakeCHEVROLET
    ModelSUBURBAN
    SubmodelLS
    Beginning Year2018
    Ending Year2020
    Engine TypeV8
    Liter5.3
    CID325
    CC5328
    Engine Size5.3L/325
    Engine FamilyChevy small block Gen V
    Body StyleSport Utility
    TransmissionAutomatic
    Drivetrain4WD
    Application NotesStainless; 2.25in. Tubing; 8x11x24in. Oval Body; 3in. Offset In/Outlet; L-12in.; 4in. Polished Stainless Round Rolled Tip; Exit Stock Location;50 State Legal / California Emissions Compliant
    Engine VIN CodeC
  • UniversalNo
    MakeCHEVROLET
    ModelSUBURBAN
    SubmodelLS
    Beginning Year2018
    Ending Year2020
    Engine TypeV8
    Liter5.3
    CID325
    CC5328
    Engine Size5.3L/325
    Engine FamilyChevy small block Gen V
    Body StyleSport Utility
    TransmissionAutomatic
    DrivetrainRWD
    Application NotesStainless; 2.25in. Tubing; 8x11x24in. Oval Body; 3in. Offset In/Outlet; L-12in.; 4in. Polished Stainless Round Rolled Tip; Exit Stock Location;50 State Legal / California Emissions Compliant
    Engine VIN CodeC
  • UniversalNo
    MakeCHEVROLET
    ModelSUBURBAN
    SubmodelLT
    Beginning Year2018
    Ending Year2020
    Engine TypeV8
    Liter5.3
    CID325
    CC5328
    Engine Size5.3L/325
    Engine FamilyChevy small block Gen V
    Body StyleSport Utility
    TransmissionAutomatic
    Drivetrain4WD
    Application NotesStainless; 2.25in. Tubing; 8x11x24in. Oval Body; 3in. Offset In/Outlet; L-12in.; 4in. Polished Stainless Round Rolled Tip; Exit Stock Location;50 State Legal / California Emissions Compliant
    Engine VIN CodeC
  • UniversalNo
    MakeCHEVROLET
    ModelSUBURBAN
    SubmodelLT
    Beginning Year2018
    Ending Year2020
    Engine TypeV8
    Liter5.3
    CID325
    CC5328
    Engine Size5.3L/325
    Engine FamilyChevy small block Gen V
    Body StyleSport Utility
    TransmissionAutomatic
    DrivetrainRWD
    Application NotesStainless; 2.25in. Tubing; 8x11x24in. Oval Body; 3in. Offset In/Outlet; L-12in.; 4in. Polished Stainless Round Rolled Tip; Exit Stock Location;50 State Legal / California Emissions Compliant
    Engine VIN CodeC
  • UniversalNo
    MakeCHEVROLET
    ModelSUBURBAN
    SubmodelPREMIER
    Beginning Year2018
    Ending Year2018
    Engine TypeV8
    Liter5.3
    CID325
    CC5328
    Engine Size5.3L/325
    Engine FamilyChevy small block Gen V
    Body StyleSport Utility
    TransmissionAutomatic
    DrivetrainAWD
    Application NotesStainless; 2.25in. Tubing; 8x11x24in. Oval Body; 3in. Offset In/Outlet; L-12in.; 4in. Polished Stainless Round Rolled Tip; Exit Stock Location;50 State Legal / California Emissions Compliant
    Engine VIN CodeC
  • UniversalNo
    MakeCHEVROLET
    ModelSUBURBAN
    SubmodelPREMIER
    Beginning Year2018
    Ending Year2020
    Engine TypeV8
    Liter5.3
    CID325
    CC5328
    Engine Size5.3L/325
    Engine FamilyChevy small block Gen V
    Body StyleSport Utility
    TransmissionAutomatic
    Drivetrain4WD
    Application NotesStainless; 2.25in. Tubing; 8x11x24in. Oval Body; 3in. Offset In/Outlet; L-12in.; 4in. Polished Stainless Round Rolled Tip; Exit Stock Location;50 State Legal / California Emissions Compliant
    Engine VIN CodeC
  • UniversalNo
    MakeCHEVROLET
    ModelSUBURBAN
    SubmodelPREMIER
    Beginning Year2018
    Ending Year2020
    Engine TypeV8
    Liter5.3
    CID325
    CC5328
    Engine Size5.3L/325
    Engine FamilyChevy small block Gen V
    Body StyleSport Utility
    TransmissionAutomatic
    DrivetrainRWD
    Application NotesStainless; 2.25in. Tubing; 8x11x24in. Oval Body; 3in. Offset In/Outlet; L-12in.; 4in. Polished Stainless Round Rolled Tip; Exit Stock Location;50 State Legal / California Emissions Compliant
    Engine VIN CodeC
  • UniversalNo
    MakeGMC
    ModelYUKON XL
    SubmodelSLE
    Beginning Year2018
    Ending Year2020
    Engine TypeV8
    Liter5.3
    CID325
    CC5328
    Engine Size5.3L/325
    Engine FamilyChevy small block Gen V
    Body StyleSport Utility
    TransmissionAutomatic
    Drivetrain4WD
    Application NotesStainless; 2.25in. Tubing; 8x11x24in. Oval Body; 3in. Offset In/Outlet; L-12in.; 4in. Polished Stainless Round Rolled Tip; Exit Stock Location;50 State Legal / California Emissions Compliant
    Engine VIN CodeC
  • UniversalNo
    MakeGMC
    ModelYUKON XL
    SubmodelSLE
    Beginning Year2018
    Ending Year2020
    Engine TypeV8
    Liter5.3
    CID325
    CC5328
    Engine Size5.3L/325
    Engine FamilyChevy small block Gen V
    Body StyleSport Utility
    TransmissionAutomatic
    DrivetrainRWD
    Application NotesStainless; 2.25in. Tubing; 8x11x24in. Oval Body; 3in. Offset In/Outlet; L-12in.; 4in. Polished Stainless Round Rolled Tip; Exit Stock Location;50 State Legal / California Emissions Compliant
    Engine VIN CodeC
  • UniversalNo
    MakeGMC
    ModelYUKON XL
    SubmodelSLT
    Beginning Year2018
    Ending Year2020
    Engine TypeV8
    Liter5.3
    CID325
    CC5328
    Engine Size5.3L/325
    Engine FamilyChevy small block Gen V
    Body StyleSport Utility
    TransmissionAutomatic
    Drivetrain4WD
    Application NotesStainless; 2.25in. Tubing; 8x11x24in. Oval Body; 3in. Offset In/Outlet; L-12in.; 4in. Polished Stainless Round Rolled Tip; Exit Stock Location;50 State Legal / California Emissions Compliant
    Engine VIN CodeC
  • UniversalNo
    MakeGMC
    ModelYUKON XL
    SubmodelSLT
    Beginning Year2018
    Ending Year2020
    Engine TypeV8
    Liter5.3
    CID325
    CC5328
    Engine Size5.3L/325
    Engine FamilyChevy small block Gen V
    Body StyleSport Utility
    TransmissionAutomatic
    DrivetrainRWD
    Application NotesStainless; 2.25in. Tubing; 8x11x24in. Oval Body; 3in. Offset In/Outlet; L-12in.; 4in. Polished Stainless Round Rolled Tip; Exit Stock Location;50 State Legal / California Emissions Compliant
    Engine VIN CodeC

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