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Gibson 20-22 Silverado/GMC Sierra 2500 HD 6.6L Crew Cab (Long Bed) Cat-Back Dual Extreme Exhaust

SKU: GIB65714

Exhaust Systems

GIB Cat-Back - Dual Extreme...

Gibson 20-22 Silverado/GMC Sierra 2500 HD 6.6L Crew Cab (Long Bed) Cat-Back Dual Extreme Exhaust

SKU: GIB65714

Exhaust Systems

GIB Cat-Back - Dual Extreme...

A$2,135.21
Last Available from MFR. LAST ONE AVAILABLE from the manufacturer's distribution centre. Once sold, this item may not be immediately available again. The dispatch timeframe shown is an estimate based on historical orders for this part and is dependent on the manufacturer releasing the final available unit.

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Description

Truck/Suv

For the extremist who wants to take their SUV to the next level, this dual bolt-on Cat back system is for you. This system exists behind the rear tires at an aggressive angle with a powerful exhaust tone outside and a calming note inside. You will gain bold street looks with powerful dyno tuned and tested street performance gains. You can expect to experience gains on average of 15-20 horsepower. Gibson muffler provides a mean performance sound and complemented with polished Stainless Tips. Easy bolt-on installation. No welding required. Backed by a Lifetime Limited Warranty. If you want Extreme, this system is it.

Additional Information

Cat-Back Dual Extreme Exhaust System; Stainless

Part Type

Exhaust System Kit

Data: v4.2 - Upd: 2026-11-10 23:10:21

Features

  • 100% Made In The U.S.A.
  • Baffled/Chambered Muffler; No Internal Packing
  • Incl. All Hardware/Factory Style Hangers
  • Lifetime Limited Warranty
  • Minimal Interior Drone - Aggressive Sound
  • Polished Stainless Steel Dual Wall Slash-Cut Weld On Tips
  • Stainless Steel Mandrel Bent Tubing
  • Stainless Superflowâ„¢ Muffler

Important Notice relating to US Domestic Market Trucks & Pickups

Many US-market trucks and pickups are available in multiple cab and bed-length configurations (e.g., Single Cab, Extended Cab, Double/Crew Cab, CrewMax, 5.5ft/6.5ft/8ft beds, etc.). Exhaust system fitment can vary between these chassis versions.

Where available, we list all compatible vehicles, cab types, and bed lengths in the product description. However, depending on your exact configuration, some systems may require optional extension/mid-pipes or minor modification for correct fitment.

Because of these variations, please carefully check your cab configuration and bed length before purchasing. If you are unsure, or if your vehicle has been modified, please reach out to a StreetFX agent.

(keyword: cat-back)

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Product Downloads

# Document Type Download
1. Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Data: v2 - Desc: v4.2 - Upd: 2026-11-10 04:17:56

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Gibson, GIBSON EXHAUST, Gibson Performance Exhaust
StreetFX SKU gib65714
SFX Item ID 4084428
Accounting SKU gib-65714
Manufacturer SKU 65714
Manufacturer UPC 677418033465
Alternative References 65714, GIB-65714

Exhaust System, Chevy, GMC, Crew Cab Long Bed 2500/3500 HD 6.6L Gas 2/4WD, Cat-Back Dual Split Sidet, Stainless, Kit

Gibson Dual Extreme exhaust systems are perfect for the drivers who want to take their vehicle to the next level. This dual bolt-on cat-back system exits behind the rear tires at an aggressive angle with a powerful exhaust tone. Add bold street looks with powerful dyno-tested and tuned street performance gains. Order the Dual Extreme exhaust system designed to fit your application.

Additional kit features:
• Aluminized heavy-duty or stainless steel tubing for extended durability
• Mandrel-bent tubing maintains constant exhaust flow through each bend for outstanding performance
• Superflow Performance muffler
• Polished T304 stainless steel tip with clampless connection design
• Zinc plated hangers and clamps
• Available in configurations for fitment on different makes and models

Product Attributes
BrandGibson Performance Exhaust
Manufacturer's Part Number65714
Part TypeExhaust Systems
Product LineGibson Dual Extreme Exhaust Systems
UPC677418033465
System Material409 stainless steel
System StyleCat-back
Exhaust TypeSingle in/Dual out
Exit LocationSplit side
System FinishNatural
Catalytic Converter(s) IncludedNo
Intermediate Pipe Diameter (in.)3.50 in.
Muffler IncludedYes
Muffler QuantityOne
Muffler ConfigurationSingle inlet/Dual outlet
Muffler StyleBaffled and chambered
Muffler Material409 stainless steel
Muffler FinishNatural
Hardware IncludedYes
Tailpipe Diameter (in.)2.50 in.
Tip IncludedYes
Tip Outlet Size (in.)4.00
Tip Quantity2
Tip ShapeRound
Tip CutSlant
Tip Edge StyleRolled edge
Tip Material304 stainless steel
Tip ColorPolished
RemanufacturedNo
QuantitySold as a kit.
Special AttentionIt 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.

Manufacturer Attributes
Inlet Inside Diameter 2.500 in.
Tubing Diameter 2.500 in.
Muffler Body Length 24.000 in.
Tip Diameter 4.000 in.
Exit Position Behind Rear Tire
Exhaust Type Cat-Back
Material Stainless Steel
Manufacturer Designation Dual Extreme Exhaust System
Product Class Exhaust System Kit
Construction/Type Cat-Back Dual Extreme Exhaust System; Stainless
Product Outline Stainless Steel Mandrel Bent Tubing
Stainless Superflow™ Muffler
Baffled/Chambered Muffler; No Internal Packing
Minimal Interior Drone - Aggressive Sound
Polished Stainless Steel Dual Wall Slash-Cut Weld On Tips
Incl. All Hardware/Factory Style Hangers
Lifetime Limited Warranty
100% Made In The U.S.A.
Vehicle Brief Gibson Exhaust System Kit
Market Description For the extremist who wants to take their SUV to the next level, this dual bolt-on Cat back system is for you. This system exists behind the rear tires at an aggressive angle with a powerful exhaust tone outside and a calming note inside. You will gain bold street looks with powerful dyno tuned and tested street performance gains. You can expect to experience gains on average of 15-20 horsepower. Gibson muffler provides a mean performance sound and complemented with polished Stainless Tips. Easy bolt-on installation. No welding required. Backed by a Lifetime Limited Warranty. If you want Extreme, this system is it.

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