# MagnaFlow 4451419 California Direct Fit Catalytic Converter (2.50" ID/2.50" OD) for 1999-2005 Chevrolet Express 1500 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: 4451419
-   Product type: California Direct Fit Catalytic Converter (2.50" ID/2.50" OD)
-   Designed for compatible vehicle applications listed on this page

### Vehicle Fitment

-   2005 Chevrolet Express 1500, Note: Base, Ls; 5.3L; 2.50"; 2.50"
-   1999 Chevrolet Silverado 1500, Note: Base, Ls, Lt; 4.3L, 4.8L, 5.3L; 2.50"; 2.50"
-   2000 Chevrolet Silverado 1500, Note: Base, Ls, Lt; 4.3L, 4.8L, 5.3L; 2.50"; 2.50"
-   2001 Chevrolet Silverado 1500, Note: Base, Ls, Lt; 4.3L, 4.8L, 5.3L; 2.50"; 2.50"
-   2002 Chevrolet Silverado 1500, Note: Base, Ls, Lt; 4.8L, 5.3L; 2.50"; 2.50"
-   2003 Chevrolet Silverado 1500, Note: Base, Ls, Lt, Wt; 4.3L, 4.8L, 5.3L; 2.50"; 2.50"
-   1999 Chevrolet Silverado 2500, Note: Base, Ls, Lt; 5.3L; 2.50"; 2.50"
-   2000 Chevrolet Silverado 2500, Note: Base, Ls, Lt; 5.3L; 2.50"; 2.50"

### 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 4451419.

**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 (2.50" ID/2.50" OD) for Chevrolet Express 1500
-   4451419 fitment
-   MagnaFlow California Direct Fit Catalytic Converter (2.50" ID/2.50" OD)
-   1999 Chevrolet Express 1500 California Direct Fit Catalytic Converter (2.50" ID/2.50" OD)

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

2005

Chevrolet

Express 1500

Base, Ls; 5.3L; 2.50"; 2.50"

1999

Chevrolet

Silverado 1500

Base, Ls, Lt; 4.3L, 4.8L, 5.3L; 2.50"; 2.50"

2000

Chevrolet

Silverado 1500

Base, Ls, Lt; 4.3L, 4.8L, 5.3L; 2.50"; 2.50"

2001

Chevrolet

Silverado 1500

Base, Ls, Lt; 4.3L, 4.8L, 5.3L; 2.50"; 2.50"

2002

Chevrolet

Silverado 1500

Base, Ls, Lt; 4.8L, 5.3L; 2.50"; 2.50"

2003

Chevrolet

Silverado 1500

Base, Ls, Lt, Wt; 4.3L, 4.8L, 5.3L; 2.50"; 2.50"

1999

Chevrolet

Silverado 2500

Base, Ls, Lt; 5.3L; 2.50"; 2.50"

2000

Chevrolet

Silverado 2500

Base, Ls, Lt; 5.3L; 2.50"; 2.50"

2000

Chevrolet

Suburban 1500

Base, Ls, Lt; 5.3L; 2.50"; 2.50"

2001

Chevrolet

Suburban 1500

Base, Ls, Lt; 5.3L; 2.50"; 2.50"

2000

Chevrolet

Tahoe

Base, Ls, Lt; 5.3L; 2.50"; 2.50"

2001

Chevrolet

Tahoe

Base, Ls, Lt; 4.8L, 5.3L; 2.50"; 2.50"

2002

Chevrolet

Tahoe

Ls, Lt; 4.8L; 2.50"; 2.50"

2003

Chevrolet

Tahoe

Ls, Lt, Z71; 4.8L; 2.50"; 2.50"

1999

GMC

Sierra 1500

Sl, Sle, Slt; 4.3L, 4.8L, 5.3L; 2.50"; 2.50"

2000

GMC

Sierra 1500

Sl, Sle, Slt; 4.3L, 4.8L, 5.3L; 2.50"; 2.50"

2001

GMC

Sierra 1500

Sl, Sle, Slt; 4.3L, 4.8L, 5.3L; 2.50"; 2.50"

2002

GMC

Sierra 1500

Sl, Sle, Slt; 4.8L, 5.3L; 2.50"; 2.50"

2003

GMC

Sierra 1500

Base, Sl, Sle, Slt, Wt; 4.3L, 4.8L, 5.3L; 2.50"; 2.50"

2000

GMC

Sierra 2500

Sl, Sle, Slt; 5.3L; 2.50"; 2.50"

2000

GMC

Yukon

Sle, Slt; 5.3L; 2.50"; 2.50"

2001

GMC

Yukon

Sle, Slt; 4.8L, 5.3L; 2.50"; 2.50"

2002

GMC

Yukon

Sle, Slt; 4.8L; 2.50"; 2.50"

2003

GMC

Yukon

Sle, Slt; 4.8L; 2.50"; 2.50"

2000

GMC

Yukon Xl 1500

Sle, Slt; 5.3L; 2.50"; 2.50"

2001

GMC

Yukon Xl 1500

Sle, Slt; 5.3L; 2.50"; 2.50"

## Details

- **Price:** 3477.1 CAD
- **Vendor:** MagnaFlow
- **Type:** California Direct Fit Catalytic Converter (2.50" ID/2.50" OD)
- **Tags:** 1999 Chevrolet Silverado 1500, 1999 Chevrolet Silverado 2500, 1999 GMC Sierra 1500, 2000 Chevrolet Silverado 1500, 2000 Chevrolet Silverado 2500, 2000 Chevrolet Suburban 1500, 2000 Chevrolet Tahoe, 2000 GMC Sierra 1500, 2000 GMC Sierra 2500, 2000 GMC Yukon, 2000 GMC Yukon Xl 1500, 2001 Chevrolet Silverado 1500, 2001 Chevrolet Suburban 1500, 2001 Chevrolet Tahoe, 2001 GMC Sierra 1500, 2001 GMC Yukon, 2001 GMC Yukon Xl 1500, 2002 Chevrolet Silverado 1500, 2002 Chevrolet Tahoe, 2002 GMC Sierra 1500, 2002 GMC Yukon, 2003 Chevrolet Silverado 1500, 2003 Chevrolet Tahoe, 2003 GMC Sierra 1500, 2003 GMC Yukon, 2005 Chevrolet Express 1500, 4451419, Auto Parts, Automotive, California Direct Fit Catalytic Converter (2.50" ID/2.50" OD), Catalytic Converter, Direct Replacement, Exhaust Performance, Exhaust System, MagnaFlow, Magnaflow-4451419, Muffler, Performance Exhaust, Performance Parts, Vehicle Fitment

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 3477.10 CAD | In stock |

## Images

- MagnaFlow 4451419 California Direct Fit Catalytic Converter (2.50" ID/2.50" OD)

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/magnaflow-chevrolet-express-1500-catalytic-converter-carb-4451419)
> Updated: 2026-07-16