# MagnaFlow 4551644 California Direct Fit Catalytic Converter (3" ID/3" OD) for 2007-2010 Chevrolet Silverado 2500 Hd and More

### Performance Overview

Magnaflow's California Catalytic Converter is designed to be CARB compliant. The catalytic converter's ribbed body is designed to minimize distortion and expansion of the body to hold the ceramic catalyst in place. magnaflow's Catalytic Converters are made of stainless steel and are backed by their limited lifetime warranty.

### Key Features

-   Brand: MagnaFlow
-   Part number: 4551644
-   Product type: California Direct Fit Catalytic Converter (3" ID/3" OD)
-   Designed for compatible vehicle applications listed on this page

### Vehicle Fitment

-   2007 Chevrolet Silverado 2500 Hd, Note: Lt, Ltz, Wt; 6.0L; New Body; 3.00"; 3.00"
-   2008 Chevrolet Silverado 2500 Hd, Note: Lt, Ltz, Wt; 6.0L; 3.00"; 3.00"
-   2009 Chevrolet Silverado 2500 Hd, Note: Lt, Ltz, Wt; 6.0L; 3.00"; 3.00"
-   2010 Chevrolet Silverado 2500 Hd, Note: Lt, Ltz, Wt; 6.0L; 3.00"; 3.00"
-   2007 Chevrolet Silverado 3500 Hd, Note: Lt, Ltz, Wt; 6.0L; New Body; 3.00"; 3.00"
-   2008 Chevrolet Silverado 3500 Hd, Note: Lt, Ltz, Wt; 6.0L; 3.00"; 3.00"
-   2009 Chevrolet Silverado 3500 Hd, Note: Lt, Ltz, Wt; 6.0L; 3.00"; 3.00"
-   2010 Chevrolet Silverado 3500 Hd, Note: Lt, Ltz, Wt; 6.0L; 3.00"; 3.00"

### FAQ

**Will this fit my vehicle?**  
Please verify your year, make, model, position, and any fitment notes using the compatibility list above before purchase.

**What part number is this?**  
The listed part number is 4551644.

**Is this product designed for direct replacement?**  
Yes. This product is intended to match compatible vehicle applications listed in the fitment section.

**Should I confirm fitment before ordering?**  
Yes. Always compare your original part, position, and vehicle details with the fitment chart before ordering.

### Common Searches

-   California Direct Fit Catalytic Converter (3" ID/3" OD) for Chevrolet Silverado 2500 Hd
-   4551644 fitment
-   MagnaFlow California Direct Fit Catalytic Converter (3" ID/3" OD)
-   2007 Chevrolet Silverado 2500 Hd California Direct Fit Catalytic Converter (3" ID/3" OD)

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

2007

Chevrolet

Silverado 2500 Hd

Lt, Ltz, Wt; 6.0L; New Body; 3.00"; 3.00"

2008

Chevrolet

Silverado 2500 Hd

Lt, Ltz, Wt; 6.0L; 3.00"; 3.00"

2009

Chevrolet

Silverado 2500 Hd

Lt, Ltz, Wt; 6.0L; 3.00"; 3.00"

2010

Chevrolet

Silverado 2500 Hd

Lt, Ltz, Wt; 6.0L; 3.00"; 3.00"

2007

Chevrolet

Silverado 3500 Hd

Lt, Ltz, Wt; 6.0L; New Body; 3.00"; 3.00"

2008

Chevrolet

Silverado 3500 Hd

Lt, Ltz, Wt; 6.0L; 3.00"; 3.00"

2009

Chevrolet

Silverado 3500 Hd

Lt, Ltz, Wt; 6.0L; 3.00"; 3.00"

2010

Chevrolet

Silverado 3500 Hd

Lt, Ltz, Wt; 6.0L; 3.00"; 3.00"

2007

GMC

Sierra 2500 Hd

Sle, Slt, Wt; 6.0L; New Body; 3.00"; 3.00"

2008

GMC

Sierra 2500 Hd

Sle, Slt, Wt; 6.0L; 3.00"; 3.00"

2009

GMC

Sierra 2500 Hd

Sle, Slt, Wt; 6.0L; 3.00"; 3.00"

2010

GMC

Sierra 2500 Hd

Sle, Slt, Wt; 6.0L; 3.00"; 3.00"

2007

GMC

Sierra 3500 Hd

Sle, Slt, Wt; 6.0L; New Body; 3.00"; 3.00"

2008

GMC

Sierra 3500 Hd

Sle, Slt, Wt; 6.0L; 3.00"; 3.00"

2009

GMC

Sierra 3500 Hd

Sle, Slt, Wt; 6.0L; 3.00"; 3.00"

2010

GMC

Sierra 3500 Hd

Sle, Slt, Wt; 6.0L; 3.00"; 3.00"

## Details

- **Price:** 5407.05 CAD
- **Vendor:** MagnaFlow
- **Type:** California Direct Fit Catalytic Converter (3" ID/3" OD)
- **Tags:** 2007 Chevrolet Silverado 2500 Hd, 2007 Chevrolet Silverado 3500 Hd, 2007 GMC Sierra 2500 Hd, 2007 GMC Sierra 3500 Hd, 2008 Chevrolet Silverado 2500 Hd, 2008 Chevrolet Silverado 3500 Hd, 2008 GMC Sierra 2500 Hd, 2008 GMC Sierra 3500 Hd, 2009 Chevrolet Silverado 2500 Hd, 2009 Chevrolet Silverado 3500 Hd, 2009 GMC Sierra 2500 Hd, 2009 GMC Sierra 3500 Hd, 2010 Chevrolet Silverado 2500 Hd, 2010 Chevrolet Silverado 3500 Hd, 2010 GMC Sierra 2500 Hd, 2010 GMC Sierra 3500 Hd, 4551644, Auto Parts, Automotive, California Direct Fit Catalytic Converter (3" ID/3" OD), Catalytic Converter, Direct Replacement, Exhaust Performance, Exhaust System, MagnaFlow, Magnaflow-4551644, Muffler, Performance Exhaust, Performance Parts, Vehicle Fitment

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 5407.05 CAD | In stock |

## Images

- MagnaFlow 4551644 California Direct Fit Catalytic Converter (3" ID/3" OD)

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/magnaflow-chevrolet-silverado-2500-hd-catalytic-converter-carb-4551644)
> Updated: 2026-07-16