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

For the enthusiast who wants an awesome look and Mild sound this Dual Split Cat back exhaust is for you. Gibson Exhaust Systems decrease backpressure and produce more torque and increased horsepower while maintaining similar factory interior sound levels. 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.

-   Baffled/Chambered Muffler; No Internal Packing
-   Polished Stainless Slash-Cut Clamp On Tips
-   Minimal Interior Drone - Aggressive Sound
-   Incl. All Hardware/Factory Style Hangers
-   Stainless Steel Mandrel Bent Tubing
-   Hassle Free Bolt-On Installation
-   Lifetime Limited Warranty
-   Superflow™ CFT Muffler

This Part Fits:

Year

Make

Model

Submodel

2020-2026

Chevrolet

Silverado 2500 HD

Custom

2020-2026

Chevrolet

Silverado 2500 HD

High Country

2020-2026

Chevrolet

Silverado 2500 HD

LT

2020-2026

Chevrolet

Silverado 2500 HD

LTZ

2020-2026

Chevrolet

Silverado 2500 HD

WT

2020-2026

Chevrolet

Silverado 3500 HD

High Country

2020-2026

Chevrolet

Silverado 3500 HD

LT

2020-2026

Chevrolet

Silverado 3500 HD

LTZ

2020-2026

Chevrolet

Silverado 3500 HD

WT

2020-2026

GMC

Sierra 2500 HD

AT4

2024-2026

GMC

Sierra 2500 HD

AT4X

2020-2021

GMC

Sierra 2500 HD

Base

2020-2026

GMC

Sierra 2500 HD

Denali

2022-2026

GMC

Sierra 2500 HD

Pro

2020-2026

GMC

Sierra 2500 HD

SLE

2020-2026

GMC

Sierra 2500 HD

SLT

2020-2026

GMC

Sierra 3500 HD

AT4

2020-2021

GMC

Sierra 3500 HD

Base

2020-2026

GMC

Sierra 3500 HD

Denali

2022-2026

GMC

Sierra 3500 HD

Pro

2020-2026

GMC

Sierra 3500 HD

SLE

2020-2026

GMC

Sierra 3500 HD

SLT

## Details

- **Price:** 2483.72 CAD
- **Vendor:** Gibson
- **Type:** Catback

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2483.72 CAD | In stock |

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/gibson-20-22-silverado-gmc-sierra-2500-hd-6-6l-crew-cab-long-bed-cat-back-dual-split-exhaust)
> Updated: 2026-06-28