# MagnaFlow 23451 Heavy Metal Direct Fit Catalytic Converter (3" ID/3" OD) for 1996-1999 Cadillac Deville and More

### Performance Overview

Magnaflow specializes in performance catalytic converter. They've spent over thirty years creating, developing, and improving on their technology to earn their reputation as being the global market leader. magnaflow's Heavy Metal catalytic converters use a combination of ceramic and metallic substrates as well as wall thickness specifically developed for your specific vehicle needs.

### Key Features

-   Brand: MagnaFlow
-   Part number: 23451
-   Product type: Heavy Metal Direct Fit Catalytic Converter (3" ID/3" OD)
-   Designed for compatible vehicle applications listed on this page

### Vehicle Fitment

-   1996 Cadillac Deville, Note: Base, Concours, D'Elegance; 4.6L; 3.00"; 3.00"
-   1997 Cadillac Deville, Note: Base, Concours, D'Elegance; 4.6L; 3.00"; 3.00"
-   1998 Cadillac Deville, Note: Base, Concours, D'Elegance; 4.6L; 3.00"; 3.00"
-   1999 Cadillac Deville, Note: Base, Concours, D'Elegance; 4.6L; 3.00"; 3.00"
-   1996 Cadillac Eldorado, Note: Base, Etc; 4.6L; 3.00"; 3.00"
-   1997 Cadillac Eldorado, Note: Base, Etc; 4.6L; 3.00"; 3.00"
-   1998 Cadillac Eldorado, Note: Esc, Etc; 4.6L; 3.00"; 3.00"
-   1999 Cadillac Eldorado, Note: Esc, Etc; 4.6L; 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 23451.

**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

-   Heavy Metal Direct Fit Catalytic Converter (3" ID/3" OD) for Cadillac Deville
-   23451 fitment
-   MagnaFlow Heavy Metal Direct Fit Catalytic Converter (3" ID/3" OD)
-   1996 Cadillac Deville Heavy Metal Direct Fit Catalytic Converter (3" ID/3" OD)

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

1996

Cadillac

Deville

Base, Concours, D'Elegance; 4.6L; 3.00"; 3.00"

1997

Cadillac

Deville

Base, Concours, D'Elegance; 4.6L; 3.00"; 3.00"

1998

Cadillac

Deville

Base, Concours, D'Elegance; 4.6L; 3.00"; 3.00"

1999

Cadillac

Deville

Base, Concours, D'Elegance; 4.6L; 3.00"; 3.00"

1996

Cadillac

Eldorado

Base, Etc; 4.6L; 3.00"; 3.00"

1997

Cadillac

Eldorado

Base, Etc; 4.6L; 3.00"; 3.00"

1998

Cadillac

Eldorado

Esc, Etc; 4.6L; 3.00"; 3.00"

1999

Cadillac

Eldorado

Esc, Etc; 4.6L; 3.00"; 3.00"

1996

Cadillac

Seville

Sls, Sts; 4.6L; 3.00"; 3.00"

1997

Cadillac

Seville

Sls, Sts; 4.6L; 3.00"; 3.00"

## Details

- **Price:** 994.7 CAD
- **Vendor:** MagnaFlow
- **Type:** Heavy Metal Direct Fit Catalytic Converter (3" ID/3" OD)
- **Tags:** 1996 Cadillac Deville, 1996 Cadillac Eldorado, 1996 Cadillac Seville, 1997 Cadillac Deville, 1997 Cadillac Eldorado, 1997 Cadillac Seville, 1998 Cadillac Deville, 1998 Cadillac Eldorado, 1999 Cadillac Deville, 1999 Cadillac Eldorado, 23451, Auto Parts, Automotive, Catalytic Converter, Direct Replacement, Exhaust Performance, Exhaust System, Heavy Metal Direct Fit Catalytic Converter (3" ID/3" OD), MagnaFlow, Magnaflow-23451, Muffler, Performance Exhaust, Performance Parts, Vehicle Fitment

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 994.70 CAD | In stock |

## Images

- MagnaFlow 23451 Heavy Metal Direct Fit Catalytic Converter (3" ID/3" OD)

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/magnaflow-cadillac-deville-catalytic-converter-23451)
> Updated: 2026-07-16