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Gibson 99-05 Chevrolet Silverado 1500 Base 4.3L 2.5in Cat-Back Super Truck Exhaust - Aluminized

SKU: GIB5518

Exhaust Systems

GIB Cat-Back - Super Truck...

Gibson 99-05 Chevrolet Silverado 1500 Base 4.3L 2.5in Cat-Back Super Truck Exhaust - Aluminized

SKU: GIB5518

Exhaust Systems

GIB Cat-Back - Super Truck...

A$1,521.27
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

Truck/Suv

Your truck deserves a super serious Performance Exhaust System. Gibson Super Truck Exhaust System offers a loud deep powerful sound with dual tailpipes that exit in front of the rear tires with Stainless Tip. You can expect a race rumble tone with improved acceleration and increased horsepower gains. Typical dyno tested horsepower gains average 10-15 and 15-20lb-ft of increased torque. Hassle free, bolt-on installation. No welding required. Backed by a Lifetime Limited Warranty. Not recommended for towing. Noise level may exceed 95-decibel standard.

Additional Information

Cat-Back Super Truck Exhaust System; Aluminized

Part Type

Exhaust System Kit

Data: v4.2 - Upd: 2026-11-10 23:09:27

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
  • Stainless Steel Clampless Sport Truck Tips
  • 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 04:19:14

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Gibson, GIBSON EXHAUST, Gibson Performance Exhaust
StreetFX SKU gib5518
SFX Item ID 4083215
Accounting SKU gib-5518
Manufacturer SKU 5518
Manufacturer UPC 677418055184
Alternative References 5518, GIB-5518

Exhaust, Super Truck, Cat-Back, Steel, Aluminized, Polished Stainless Tips, Chevy, GMC, Pickup, Kit

These Gibson Super Truck systems are designed for race enthusiasts to give their trucks that race sound with impressive acceleration and more power. They exit in front of the rear tires and include a Superflow muffler, mandrel-bent tubing, two polished sport tips, and all necessary mounting hardware.

Product Attributes
BrandGibson Performance Exhaust
Manufacturer's Part Number5518
Part TypeExhaust Systems
Product LineGibson Super Truck Exhaust Systems
UPC677418055184
System MaterialSteel
System StyleCat-back
Exhaust TypeSingle in/Dual out
Exit LocationPassenger side
System FinishAluminized
Catalytic Converter(s) IncludedNo
Intermediate Pipe Diameter (in.)3.00 in.
Muffler IncludedYes
Muffler QuantityOne
Muffler ConfigurationSingle inlet/Dual outlet
Muffler StyleBaffled and chambered
Hardware IncludedYes
Inlet Quantity1
Tailpipe Diameter (in.)2.50 in.
Tip IncludedYes
Tip Outlet Size (in.)6.00 x 2.75
Tip Quantity2
Tip ShapeRectangular
Tip CutSlant
Tip Edge StyleNon-rolled edge, single-wall
Tip Material304 stainless steel
Tip FinishPolished
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
Muffler Body Length 19.000 in.
Outlet Outside Diameter 2.500 in.
Tail Pipe Diameter 2.500 in.
Tubing Diameter 2.500 in.
Inlet Inside Diameter 3.000 in.
Tip Diameter 6.000 in.
Material Aluminized
System Type Cat Back
Muffler Type Chambered
Exhaust Type Dual
Exit Position Front of Rear Tire
Tip Logo None
Exit Style Straight
Manufacturer Designation Super Truck Exhaust System
Product Class Exhaust System Kit
Construction/Type Cat-Back Super Truck Exhaust System; Aluminized
Product Outline Aluminized Mandrel Bent Tubing
Superflow™ Muffler
Baffled/Chambered Muffler; No Internal Packing
Minimal Interior Drone - Aggressive Sound
Stainless Steel Clampless Sport Truck Tips
Hassle Free Easy Bolt-On Installation
Lifetime Limited Warranty
Vehicle Brief Gibson Exhaust System Kit
Market Description Your truck deserves a super serious Performance Exhaust System. Gibson Super Truck Exhaust System offers a loud deep powerful sound with dual tailpipes that exit in front of the rear tires with Stainless Tip. You can expect a race rumble tone with improved acceleration and increased horsepower gains. Typical dyno tested horsepower gains average 10-15 and 15-20lb-ft of increased torque. Hassle free, bolt-on installation. No welding required. Backed by a Lifetime Limited Warranty. Not recommended for towing. Noise level may exceed 95-decibel standard.

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