# MagnaFlow Down-Pipe 06-07 GM Diesel 6.6L

The MagnaFlow Turbo Downpipe 15399 is a 4in. diameter mandrel bent stainless steel pipe designed to connect near your turbocharger and i's 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

2001-2006

Chevrolet

Silverado 2500 HD

LS

2001-2006

Chevrolet

Silverado 2500 HD

LT

2004-2006

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

2001-2005

Chevrolet

Silverado 3500

Base

2001-2006

Chevrolet

Silverado 3500

LS

2001-2006

Chevrolet

Silverado 3500

LT

2004,2006

Chevrolet

Silverado 3500

WT

2007

Chevrolet

Silverado 3500 Classic

LS

2007

Chevrolet

Silverado 3500 Classic

LT

2007

Chevrolet

Silverado 3500 Classic

WT

2002-2005

GMC

Sierra 2500 HD

Base

2001-2002,2006

GMC

Sierra 2500 HD

SL

2001-2006

GMC

Sierra 2500 HD

SLE

2001-2006

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

2002-2005

GMC

Sierra 3500

Base

2001-2002,2006

GMC

Sierra 3500

SL

2001-2006

GMC

Sierra 3500

SLE

2001-2006

GMC

Sierra 3500

SLT

2004-2006

GMC

Sierra 3500

WT

2007

GMC

Sierra 3500 Classic

SL

2007

GMC

Sierra 3500 Classic

SLE

2007

GMC

Sierra 3500 Classic

SLT

2007

GMC

Sierra 3500 Classic

WT

## Details

- **Price:** 324.63 CAD
- **Vendor:** Magnaflow
- **Type:** Downpipe Back

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 324.63 CAD | In stock |

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/magnaflow-down-pipe-06-07-gm-diesel-6-6l)
> Updated: 2026-06-29