# MagnaFlow 4451217 California Direct Fit Catalytic Converter (2.50" ID/2.50" OD) for 2002-2003 Chevrolet Trailblazer 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: 4451217
-   Product type: California Direct Fit Catalytic Converter (2.50" ID/2.50" OD)
-   Designed for compatible vehicle applications listed on this page

### Vehicle Fitment

-   2002 Chevrolet Trailblazer, Note: Ls, Lt, Ltz, North Face; 4.2L; 2.50"; 2.50"
-   2003 Chevrolet Trailblazer, Note: Ls, Lt, Ltz, North Face; 4.2L; 2.50"; 2.50"
-   2002 Chevrolet Trailblazer Ext, Note: Lt, North Face; 4.2L; 2.50"; 2.50"
-   2003 Chevrolet Trailblazer Ext, Note: Ls, Lt, North Face; 4.2L; 2.50"; 2.50"
-   2002 GMC Envoy, Note: Sle, Slt; 4.2L; 2.50"; 2.50"
-   2003 GMC Envoy, Note: Sle, Slt; 4.2L; 2.50"; 2.50"
-   2002 Oldsmobile Bravada, Note: Base; 4.2L; 2.50"; 2.50"
-   2003 Oldsmobile Bravada, Note: Base; 4.2L; 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 4451217.

**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 Trailblazer
-   4451217 fitment
-   MagnaFlow California Direct Fit Catalytic Converter (2.50" ID/2.50" OD)
-   2002 Chevrolet Trailblazer California Direct Fit Catalytic Converter (2.50" ID/2.50" OD)

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

2002

Chevrolet

Trailblazer

Ls, Lt, Ltz, North Face; 4.2L; 2.50"; 2.50"

2003

Chevrolet

Trailblazer

Ls, Lt, Ltz, North Face; 4.2L; 2.50"; 2.50"

2002

Chevrolet

Trailblazer Ext

Lt, North Face; 4.2L; 2.50"; 2.50"

2003

Chevrolet

Trailblazer Ext

Ls, Lt, North Face; 4.2L; 2.50"; 2.50"

2002

GMC

Envoy

Sle, Slt; 4.2L; 2.50"; 2.50"

2003

GMC

Envoy

Sle, Slt; 4.2L; 2.50"; 2.50"

2002

Oldsmobile

Bravada

Base; 4.2L; 2.50"; 2.50"

2003

Oldsmobile

Bravada

Base; 4.2L; 2.50"; 2.50"

## Details

- **Price:** 2173.55 CAD
- **Vendor:** MagnaFlow
- **Type:** California Direct Fit Catalytic Converter (2.50" ID/2.50" OD)
- **Tags:** 2002 Chevrolet Trailblazer, 2002 Chevrolet Trailblazer Ext, 2002 GMC Envoy, 2002 Oldsmobile Bravada, 2003 Chevrolet Trailblazer, 2003 Chevrolet Trailblazer Ext, 2003 GMC Envoy, 2003 Oldsmobile Bravada, 4451217, Auto Parts, Automotive, California Direct Fit Catalytic Converter (2.50" ID/2.50" OD), Catalytic Converter, Direct Replacement, Exhaust Performance, Exhaust System, MagnaFlow, Magnaflow-4451217, Muffler, Performance Exhaust, Performance Parts, Vehicle Fitment

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2173.55 CAD | In stock |

## Images

- MagnaFlow 4451217 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-trailblazer-catalytic-converter-carb-4451217)
> Updated: 2026-07-16