# MagnaFlow 01-05 Chevy/GMC Duramax Diesel V8 6.6L 4 inch System Exhaust Pipe

The MagnaFlow Performance Exhaust Diesel Turbo Downpipe 15398 is a 3in. diameter mandrel bent stainless steel pipe designed to connect near your turbocharger and is weight-optimized with superior flow characteristics and performance. Each performance pipe is produced using precision CNC robotic manufacturing techniques and features 100% durable, corrosion resistant stainless steel construction. Professional installation is highly recommended.

-   Durable Corrosion-Resistant Stainless Steel Construction
-   CNC Precision Robotic Manufacturing Techniques
-   Mandrel bent tubing

This Part Fits:

Year

Make

Model

Submodel

2001-2005

Chevrolet

Silverado 2500 HD

Base

2001-2005

Chevrolet

Silverado 2500 HD

LS

2001-2005

Chevrolet

Silverado 2500 HD

LT

2003-2005

Chevrolet

Silverado 2500 HD

WT

2001-2005

Chevrolet

Silverado 3500

Base

2001-2005

Chevrolet

Silverado 3500

LS

2001-2005

Chevrolet

Silverado 3500

LT

2004

Chevrolet

Silverado 3500

WT

2002-2005

GMC

Sierra 2500 HD

Base

2001-2002

GMC

Sierra 2500 HD

SL

2001-2005

GMC

Sierra 2500 HD

SLE

2001-2005

GMC

Sierra 2500 HD

SLT

2003-2005

GMC

Sierra 2500 HD

WT

2002-2005

GMC

Sierra 3500

Base

2001-2002

GMC

Sierra 3500

SL

2001-2005

GMC

Sierra 3500

SLE

2001-2005

GMC

Sierra 3500

SLT

2004-2005

GMC

Sierra 3500

WT

## Details

- **Price:** 315.29 CAD
- **Vendor:** Magnaflow
- **Type:** Downpipe Back

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 315.29 CAD | In stock |

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/magnaflow-01-05-chevy-gmc-duramax-diesel-v8-6-6l-4-inch-system-exhaust-pipe)
> Updated: 2026-06-29