Home / Shop / Gibson 02-05 Chevrolet Avalanche 1500 Base 5.3L 2.25in Cat-Back Dual Split Exhaust - Aluminized

Gibson 02-05 Chevrolet Avalanche 1500 Base 5.3L 2.25in Cat-Back Dual Split Exhaust - Aluminized

SKU: GIB5561

Exhaust Systems

GIB Cat-Back - Dual Split...

Gibson

Gibson 02-05 Chevrolet Avalanche 1500 Base 5.3L 2.25in Cat-Back Dual Split Exhaust - Aluminized

SKU: GIB5561

Exhaust Systems

GIB Cat-Back - Dual Split...

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Description

For the enthusiast who wants an awesome look and aggressive throaty sound this Dual Split Cat back exhaust is for you. Gibson Exhaust Systems decrease backpressure and produce more torque and increased horsepower. Typical gains average of 15-20 horsepower. Stainless dual Tip exit straight out the back. Works with most bumpers, roll pans and trailer hitches. Exhaust sound is louder under towing conditions. Hassle Free bolt- on installation. No welding required. Backed by a Lifetime Limited Warranty.

Part Type

Exhaust System Kit

Data: v4.2 - Upd: 2026-10-13 16:45:18

Features

Aluminized Mandrel Bent Tubing
Baffled/Chambered Muffler; No Internal Packing
Hassle Free Easy Bolt-On Installation
Lifetime Limited Warranty
Minimal Interior Drone - Aggressive Sound
Polished Stainless Steel Slash-Cut Tips
Superflow™ Muffler

Specifications

Product Attributes - UPC: 677418011494
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 in/Dual out
Product Attributes - Product Line: Gibson Split Rear Exhaust Systems
Product Attributes - System Style: Cat-back
Product Attributes - Tip Included: Yes
Product Attributes - Tip Material: 304 stainless steel
Product Attributes - Tip Quantity: 2
Product Attributes - Exit Location: Split rear
Product Attributes - Muffler Style: Baffled and chambered
Product Attributes - System Finish: Aluminized
Product Attributes - Inlet Quantity: 1
Product Attributes - Muffler Finish: Aluminized
Product Attributes - Tip Edge Style: Non-rolled edge, single-wall
Product Attributes - System Material: Steel
Product Attributes - Muffler Included: Yes
Product Attributes - Muffler Material: 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/Dual outlet
Product Attributes - Tip Outlet Size (in.): 3.50
Product Attributes - Tailpipe Diameter (in.): 2.50 in.
Product Attributes - Manufacturer's Part Number: 5561
Product Attributes - Catalytic Converter(s) Included: No
Product Attributes - Intermediate Pipe Diameter (in.): 3.00 in.

Reference Information

Brand Name/s	Gibson
StreetFX SKU	gib5561
SFX Item ID	4083226
Supplier Item Code	4083226
Manufacturer SKU	5561
Manufacturer UPC	677418011494
Alternative References	5.3L, 2.25in

Brochures

Compatibility

Application Data

Universal	No
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	BASE
Beginning Year	2002
Ending Year	2004
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Body Style	Crew Cab Pickup
Truck Bed Length in. (AAIA)	63.0
Transmission	Automatic
Drivetrain	4WD
Application Notes	Aluminized; 2.25in. Tubing; 8in. Rd Body; 3in. Offset In/2.25in. Dual Outlet; L-24in.; 3.5in. Polished Slash-Cut Tip; Exit Straight Out Back;50 State Legal / California Emissions Compliant With Stock Single Inlet Muffler~Stock Dual Inlet Muffler
Engine VIN Code	T

Universal	No
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	BASE
Beginning Year	2002
Ending Year	2004
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Body Style	Crew Cab Pickup
Truck Bed Length in. (AAIA)	63.0
Transmission	Automatic
Drivetrain	RWD
Application Notes	Aluminized; 2.25in. Tubing; 8in. Rd Body; 3in. Offset In/2.25in. Dual Outlet; L-24in.; 3.5in. Polished Slash-Cut Tip; Exit Straight Out Back;50 State Legal / California Emissions Compliant With Stock Single Inlet Muffler~Stock Dual Inlet Muffler
Engine VIN Code	T

Universal	No
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	BASE
Beginning Year	2005
Ending Year	2005
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Body Style	Crew Cab Pickup
Truck Bed Length in. (AAIA)	63.0
Transmission	Automatic
Drivetrain	4WD
Application Notes	Aluminized; 2.25in. Tubing; 8in. Rd Body; 3in. Offset In/2.25in. Dual Outlet; L-24in.; 3.5in. Polished Slash-Cut Tip; Exit Straight Out Back;50 State Legal / California Emissions Compliant Stock Dual Inlet Muffler
Engine VIN Code	T

Universal	No
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	BASE
Beginning Year	2005
Ending Year	2005
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Body Style	Crew Cab Pickup
Truck Bed Length in. (AAIA)	63.0
Transmission	Automatic
Drivetrain	4WD
Application Notes	Aluminized; 2.25in. Tubing; 8in. Rd Body; 3in. Offset In/2.25in. Dual Outlet; L-24in.; 3.5in. Polished Slash-Cut Tip; Exit Straight Out Back;50 State Legal / California Emissions Compliant Stock Dual Inlet Muffler
Engine VIN Code	Z

Universal	No
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	BASE
Beginning Year	2005
Ending Year	2005
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Body Style	Crew Cab Pickup
Truck Bed Length in. (AAIA)	63.0
Transmission	Automatic
Drivetrain	RWD
Application Notes	Aluminized; 2.25in. Tubing; 8in. Rd Body; 3in. Offset In/2.25in. Dual Outlet; L-24in.; 3.5in. Polished Slash-Cut Tip; Exit Straight Out Back;50 State Legal / California Emissions Compliant Stock Dual Inlet Muffler
Engine VIN Code	T

Universal	No
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	BASE
Beginning Year	2005
Ending Year	2005
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Body Style	Crew Cab Pickup
Truck Bed Length in. (AAIA)	63.0
Transmission	Automatic
Drivetrain	RWD
Application Notes	Aluminized; 2.25in. Tubing; 8in. Rd Body; 3in. Offset In/2.25in. Dual Outlet; L-24in.; 3.5in. Polished Slash-Cut Tip; Exit Straight Out Back;50 State Legal / California Emissions Compliant Stock Dual Inlet Muffler
Engine VIN Code	Z

Universal	No
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	BASE
Beginning Year	2005
Ending Year	2006
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Body Style	Crew Cab Pickup
Truck Bed Length in. (AAIA)	63.3
Transmission	Automatic
Drivetrain	4WD
Application Notes	Aluminized; 2.25in. Tubing; 8in. Rd Body; 3in. Offset In/2.25in. Dual Outlet; L-24in.; 3.5in. Polished Slash-Cut Tip; Exit Straight Out Back;50 State Legal / California Emissions Compliant Stock Dual Inlet Muffler
Engine VIN Code	Z

Universal	No
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	LS
Beginning Year	2005
Ending Year	2006
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Body Style	Crew Cab Pickup
Truck Bed Length in. (AAIA)	63.0
Transmission	Automatic
Drivetrain	4WD
Application Notes	Aluminized; 2.25in. Tubing; 8in. Rd Body; 3in. Offset In/2.25in. Dual Outlet; L-24in.; 3.5in. Polished Slash-Cut Tip; Exit Straight Out Back;50 State Legal / California Emissions Compliant Stock Dual Inlet Muffler
Engine VIN Code	T

Universal	No
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	LS
Beginning Year	2005
Ending Year	2006
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Body Style	Crew Cab Pickup
Truck Bed Length in. (AAIA)	63.0
Transmission	Automatic
Drivetrain	4WD
Application Notes	Aluminized; 2.25in. Tubing; 8in. Rd Body; 3in. Offset In/2.25in. Dual Outlet; L-24in.; 3.5in. Polished Slash-Cut Tip; Exit Straight Out Back;50 State Legal / California Emissions Compliant Stock Dual Inlet Muffler
Engine VIN Code	Z

Universal	No
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	LS
Beginning Year	2005
Ending Year	2006
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Body Style	Crew Cab Pickup
Truck Bed Length in. (AAIA)	63.0
Transmission	Automatic
Drivetrain	RWD
Application Notes	Aluminized; 2.25in. Tubing; 8in. Rd Body; 3in. Offset In/2.25in. Dual Outlet; L-24in.; 3.5in. Polished Slash-Cut Tip; Exit Straight Out Back;50 State Legal / California Emissions Compliant Stock Dual Inlet Muffler
Engine VIN Code	T

Universal	No
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	LS
Beginning Year	2005
Ending Year	2006
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Body Style	Crew Cab Pickup
Truck Bed Length in. (AAIA)	63.0
Transmission	Automatic
Drivetrain	RWD
Application Notes	Aluminized; 2.25in. Tubing; 8in. Rd Body; 3in. Offset In/2.25in. Dual Outlet; L-24in.; 3.5in. Polished Slash-Cut Tip; Exit Straight Out Back;50 State Legal / California Emissions Compliant Stock Dual Inlet Muffler
Engine VIN Code	Z

Universal	No
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	LT
Beginning Year	2005
Ending Year	2006
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Body Style	Crew Cab Pickup
Truck Bed Length in. (AAIA)	63.0
Transmission	Automatic
Drivetrain	4WD
Application Notes	Aluminized; 2.25in. Tubing; 8in. Rd Body; 3in. Offset In/2.25in. Dual Outlet; L-24in.; 3.5in. Polished Slash-Cut Tip; Exit Straight Out Back;50 State Legal / California Emissions Compliant Stock Dual Inlet Muffler
Engine VIN Code	T

Universal	No
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	LT
Beginning Year	2005
Ending Year	2006
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Body Style	Crew Cab Pickup
Truck Bed Length in. (AAIA)	63.0
Transmission	Automatic
Drivetrain	4WD
Application Notes	Aluminized; 2.25in. Tubing; 8in. Rd Body; 3in. Offset In/2.25in. Dual Outlet; L-24in.; 3.5in. Polished Slash-Cut Tip; Exit Straight Out Back;50 State Legal / California Emissions Compliant Stock Dual Inlet Muffler
Engine VIN Code	Z

Universal	No
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	LT
Beginning Year	2005
Ending Year	2006
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Body Style	Crew Cab Pickup
Truck Bed Length in. (AAIA)	63.0
Transmission	Automatic
Drivetrain	RWD
Application Notes	Aluminized; 2.25in. Tubing; 8in. Rd Body; 3in. Offset In/2.25in. Dual Outlet; L-24in.; 3.5in. Polished Slash-Cut Tip; Exit Straight Out Back;50 State Legal / California Emissions Compliant Stock Dual Inlet Muffler
Engine VIN Code	T

Universal	No
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	LT
Beginning Year	2005
Ending Year	2006
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Body Style	Crew Cab Pickup
Truck Bed Length in. (AAIA)	63.0
Transmission	Automatic
Drivetrain	RWD
Application Notes	Aluminized; 2.25in. Tubing; 8in. Rd Body; 3in. Offset In/2.25in. Dual Outlet; L-24in.; 3.5in. Polished Slash-Cut Tip; Exit Straight Out Back;50 State Legal / California Emissions Compliant Stock Dual Inlet Muffler
Engine VIN Code	Z

Universal	No
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	NORTH FACE
Beginning Year	2002
Ending Year	2003
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Body Style	Crew Cab Pickup
Truck Bed Length in. (AAIA)	63.0
Transmission	Automatic
Drivetrain	4WD
Application Notes	Aluminized; 2.25in. Tubing; 8in. Rd Body; 3in. Offset In/2.25in. Dual Outlet; L-24in.; 3.5in. Polished Slash-Cut Tip; Exit Straight Out Back;50 State Legal / California Emissions Compliant With Stock Single Inlet Muffler~Stock Dual Inlet Muffler
Engine VIN Code	T

Universal	No
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	ON ROAD EDITION
Beginning Year	2002
Ending Year	2003
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Body Style	Crew Cab Pickup
Truck Bed Length in. (AAIA)	63.0
Transmission	Automatic
Drivetrain	RWD
Application Notes	Aluminized; 2.25in. Tubing; 8in. Rd Body; 3in. Offset In/2.25in. Dual Outlet; L-24in.; 3.5in. Polished Slash-Cut Tip; Exit Straight Out Back;50 State Legal / California Emissions Compliant With Stock Single Inlet Muffler~Stock Dual Inlet Muffler
Engine VIN Code	T

Universal	No
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	WBH
Beginning Year	2003
Ending Year	2003
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Body Style	Crew Cab Pickup
Truck Bed Length in. (AAIA)	63.0
Transmission	Automatic
Drivetrain	4WD
Application Notes	Aluminized; 2.25in. Tubing; 8in. Rd Body; 3in. Offset In/2.25in. Dual Outlet; L-24in.; 3.5in. Polished Slash-Cut Tip; Exit Straight Out Back;50 State Legal / California Emissions Compliant With Stock Single Inlet Muffler~Stock Dual Inlet Muffler
Engine VIN Code	T

Universal	No
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	WBH
Beginning Year	2003
Ending Year	2003
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Body Style	Crew Cab Pickup
Truck Bed Length in. (AAIA)	63.0
Transmission	Automatic
Drivetrain	RWD
Application Notes	Aluminized; 2.25in. Tubing; 8in. Rd Body; 3in. Offset In/2.25in. Dual Outlet; L-24in.; 3.5in. Polished Slash-Cut Tip; Exit Straight Out Back;50 State Legal / California Emissions Compliant With Stock Single Inlet Muffler~Stock Dual Inlet Muffler
Engine VIN Code	T

Universal	No
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	Z66
Beginning Year	2004
Ending Year	2004
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Body Style	Crew Cab Pickup
Truck Bed Length in. (AAIA)	63.0
Transmission	Automatic
Drivetrain	RWD
Application Notes	Aluminized; 2.25in. Tubing; 8in. Rd Body; 3in. Offset In/2.25in. Dual Outlet; L-24in.; 3.5in. Polished Slash-Cut Tip; Exit Straight Out Back;50 State Legal / California Emissions Compliant With Stock Single Inlet Muffler~Stock Dual Inlet Muffler
Engine VIN Code	T

Universal	No
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	Z66
Beginning Year	2005
Ending Year	2006
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Body Style	Crew Cab Pickup
Truck Bed Length in. (AAIA)	63.0
Transmission	Automatic
Drivetrain	RWD
Application Notes	Aluminized; 2.25in. Tubing; 8in. Rd Body; 3in. Offset In/2.25in. Dual Outlet; L-24in.; 3.5in. Polished Slash-Cut Tip; Exit Straight Out Back;50 State Legal / California Emissions Compliant Stock Dual Inlet Muffler
Engine VIN Code	T

Universal	No
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	Z66
Beginning Year	2005
Ending Year	2006
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Body Style	Crew Cab Pickup
Truck Bed Length in. (AAIA)	63.0
Transmission	Automatic
Drivetrain	RWD
Application Notes	Aluminized; 2.25in. Tubing; 8in. Rd Body; 3in. Offset In/2.25in. Dual Outlet; L-24in.; 3.5in. Polished Slash-Cut Tip; Exit Straight Out Back;50 State Legal / California Emissions Compliant Stock Dual Inlet Muffler
Engine VIN Code	Z

Universal	No
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	Z71
Beginning Year	2002
Ending Year	2004
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Body Style	Crew Cab Pickup
Truck Bed Length in. (AAIA)	63.0
Transmission	Automatic
Drivetrain	4WD
Application Notes	Aluminized; 2.25in. Tubing; 8in. Rd Body; 3in. Offset In/2.25in. Dual Outlet; L-24in.; 3.5in. Polished Slash-Cut Tip; Exit Straight Out Back;50 State Legal / California Emissions Compliant With Stock Single Inlet Muffler~Stock Dual Inlet Muffler
Engine VIN Code	T

Universal	No
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	Z71
Beginning Year	2005
Ending Year	2006
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Body Style	Crew Cab Pickup
Truck Bed Length in. (AAIA)	63.0
Transmission	Automatic
Drivetrain	4WD
Application Notes	Aluminized; 2.25in. Tubing; 8in. Rd Body; 3in. Offset In/2.25in. Dual Outlet; L-24in.; 3.5in. Polished Slash-Cut Tip; Exit Straight Out Back;50 State Legal / California Emissions Compliant Stock Dual Inlet Muffler
Engine VIN Code	T

Universal	No
Make	CHEVROLET
Model	AVALANCHE 1500
Submodel	Z71
Beginning Year	2005
Ending Year	2006
Engine Type	V8
Liter	5.3
CID	325
CC	5328
Engine Size	5.3L/325
Engine Family	Chevy small block Gen III/IV (LS-based engines)
Body Style	Crew Cab Pickup
Truck Bed Length in. (AAIA)	63.0
Transmission	Automatic
Drivetrain	4WD
Application Notes	Aluminized; 2.25in. Tubing; 8in. Rd Body; 3in. Offset In/2.25in. Dual Outlet; L-24in.; 3.5in. Polished Slash-Cut Tip; Exit Straight Out Back;50 State Legal / California Emissions Compliant Stock Dual Inlet Muffler
Engine VIN Code	Z

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Gibson 02-05 Chevrolet Avalanche 1500 Base 5.3L 2.25in Cat-Back Dual Split Exhaust - Aluminized

Gibson 02-05 Chevrolet Avalanche 1500 Base 5.3L 2.25in Cat-Back Dual Split Exhaust - Aluminized

Description

Part Type

Features

Specifications

Reference Information

Brochures

Compatibility

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