# MagnaFlow Sys C/B 03 GM Silverado 2500Hd 6.0L

The MagnaFlow Street Series Cat-Back Performance Exhaust System 15789 brings out the personality of your Truck with our signature resonant, powerful engine tone and dyno-proven performance. Thanks to its fast-flowing, mandrel bent 4in. main piping and 1 Straight-Through mufflers ending in a Single Passenger Side Rear exit with 4in. Polished Welded-On Single Wall Angle Cut Rolled Edge tips, this Truck exhaust kit has the performance chops to match its sporty sound and appearance. Upgrade your ride to the next level with an exhaust that has the pipes to put other Truck's to shame. With this system your vehicle will be producing Moderate exterior and Mild interior sound levels while leaving other cars and trucks feeling envious at every stoplight. Exhaust kit 15789 features a cat-back layout that replaces your ride's stock exhaust components from near the catalytic converter on back. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 15789 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow's 1-year limited finish warranty and limited lifetime construction warranty.

-   Durable Corrosion-Resistant Stainless Steel Construction
-   CNC Precision Robotic Manufacturing Techniques
-   Dyno-proven performance

This Part Fits:

Year

Make

Model

Submodel

2006

Chevrolet

Silverado 1500 HD

LT

2003-2005

Chevrolet

Silverado 2500 HD

Base

2003-2006

Chevrolet

Silverado 2500 HD

LS

2003-2006

Chevrolet

Silverado 2500 HD

LT

2003-2006

Chevrolet

Silverado 2500 HD

WT

2007

Chevrolet

Silverado 2500 HD Classic

LS

2007

Chevrolet

Silverado 2500 HD Classic

LT

2007

Chevrolet

Silverado 2500 HD Classic

WT

2003-2005

GMC

Sierra 2500 HD

Base

2006

GMC

Sierra 2500 HD

SL

2003-2006

GMC

Sierra 2500 HD

SLE

2003-2006

GMC

Sierra 2500 HD

SLT

2003-2006

GMC

Sierra 2500 HD

WT

2007

GMC

Sierra 2500 HD Classic

SL

2007

GMC

Sierra 2500 HD Classic

SLE

2007

GMC

Sierra 2500 HD Classic

SLT

2007

GMC

Sierra 2500 HD Classic

WT

## Details

- **Price:** 1444.83 CAD
- **Vendor:** Magnaflow
- **Type:** Catback

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1444.83 CAD | In stock |

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/magnaflow-sys-c-b-03-gm-silverado-2500hd-6-0l)
> Updated: 2026-06-29