# MagnaFlow 23423 Direct Fit Standard Catalytic Converter (2" ID/2" OD) for 1989-1993 Buick Century and More

### Performance Overview

The Direct Fit Catalytic Converter is designed with a ribbed body that can reduce expansion and distortion when the converters heat up. These ribs holds the ceramic catalyst in a proper position and it also forms a channel that shields the cushioning mat from direct exposure to exhaust gases. The ceramic coating is made for maximum surface area and flow, and the coating method is strictly controlled so that exact

### Key Features

-   Brand: MagnaFlow
-   Part number: 23423
-   Product type: Direct Fit Standard Catalytic Converter (2" ID/2" OD)
-   Designed for compatible vehicle applications listed on this page

### Vehicle Fitment

-   1989 Buick Century, Note: Custom, Estate Wagon, Limited; 3.3L; 2.00"; 2.00"
-   1990 Buick Century, Note: Custom, Limited; 3.3L; 2.00"; 2.00"
-   1991 Buick Century, Note: Custom, Limited, Special; 3.3L; 2.00"; 2.00"
-   1992 Buick Century, Note: Custom, Limited, Special; 3.3L; 2.00"; 2.00"
-   1993 Buick Century, Note: Custom, Limited, Special; 3.3L; 2.00"; 2.00"
-   1989 Oldsmobile Cutlass Ciera, Note: Base, Gt, International, Sl; 3.3L; 2.00"; 2.00"
-   1990 Oldsmobile Cutlass Ciera, Note: Base, Gt, International, S, Sl; 3.3L; 2.00"; 2.00"
-   1991 Oldsmobile Cutlass Ciera, Note: Base, S, Sl; 3.3L; 2.00"; 2.00"

### 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 23423.

**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

-   Direct Fit Standard Catalytic Converter (2" ID/2" OD) for Buick Century
-   23423 fitment
-   MagnaFlow Direct Fit Standard Catalytic Converter (2" ID/2" OD)
-   1989 Buick Century Direct Fit Standard Catalytic Converter (2" ID/2" OD)

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

1989

Buick

Century

Custom, Estate Wagon, Limited; 3.3L; 2.00"; 2.00"

1990

Buick

Century

Custom, Limited; 3.3L; 2.00"; 2.00"

1991

Buick

Century

Custom, Limited, Special; 3.3L; 2.00"; 2.00"

1992

Buick

Century

Custom, Limited, Special; 3.3L; 2.00"; 2.00"

1993

Buick

Century

Custom, Limited, Special; 3.3L; 2.00"; 2.00"

1989

Oldsmobile

Cutlass Ciera

Base, Gt, International, Sl; 3.3L; 2.00"; 2.00"

1990

Oldsmobile

Cutlass Ciera

Base, Gt, International, S, Sl; 3.3L; 2.00"; 2.00"

1991

Oldsmobile

Cutlass Ciera

Base, S, Sl; 3.3L; 2.00"; 2.00"

1992

Oldsmobile

Cutlass Ciera

Base, S, Sl; 3.3L; 2.00"; 2.00"

1993

Oldsmobile

Cutlass Ciera

Base, S, Sl; 3.3L; 2.00"; 2.00"

1989

Oldsmobile

Cutlass Cruiser

Base, Sl; 3.3L; 2.00"; 2.00"

1990

Oldsmobile

Cutlass Cruiser

Base, Sl; 3.3L; 2.00"; 2.00"

1991

Oldsmobile

Cutlass Cruiser

Base, S, Sl; 3.3L; 2.00"; 2.00"

1992

Oldsmobile

Cutlass Cruiser

Base, S, Sl; 3.3L; 2.00"; 2.00"

1993

Oldsmobile

Cutlass Cruiser

Base, S; 3.3L; 2.00"; 2.00"

## Details

- **Price:** 430.65 CAD
- **Vendor:** MagnaFlow
- **Type:** Direct Fit Standard Catalytic Converter (2" ID/2" OD)
- **Tags:** 1989 Buick Century, 1989 Oldsmobile Cutlass Ciera, 1989 Oldsmobile Cutlass Cruiser, 1990 Buick Century, 1990 Oldsmobile Cutlass Ciera, 1990 Oldsmobile Cutlass Cruiser, 1991 Buick Century, 1991 Oldsmobile Cutlass Ciera, 1991 Oldsmobile Cutlass Cruiser, 1992 Buick Century, 1992 Oldsmobile Cutlass Ciera, 1992 Oldsmobile Cutlass Cruiser, 1993 Buick Century, 1993 Oldsmobile Cutlass Ciera, 1993 Oldsmobile Cutlass Cruiser, 23423, Auto Parts, Automotive, Catalytic Converter, Direct Fit Standard Catalytic Converter (2" ID/2" OD), Direct Replacement, Exhaust Performance, Exhaust System, MagnaFlow, Magnaflow-23423, Muffler, Performance Exhaust, Performance Parts, Vehicle Fitment

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 430.65 CAD | In stock |

## Images

- MagnaFlow 23423 Direct Fit Standard Catalytic Converter (2" ID/2" OD)

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/magnaflow-buick-century-catalytic-converter-23423)
> Updated: 2026-07-16