# MagnaFlow 23558 Direct Fit Standard Catalytic Converter (2.25" ID/2" OD) for 1981-1984 Bmw 533I 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: 23558
-   Product type: Direct Fit Standard Catalytic Converter (2.25" ID/2" OD)
-   Designed for compatible vehicle applications listed on this page

### Vehicle Fitment

-   1983 Bmw 533I, Note: Base; 3.2L; 2.25"; 2.00"
-   1984 Bmw 533I, Note: Base; 3.2L; 2.25"; 2.00"
-   1981 Bmw 633Csi, Note: Base; 3.2L; 2.25"; 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 23558.

**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 (2.25" ID/2" OD) for Bmw 533I
-   23558 fitment
-   MagnaFlow Direct Fit Standard Catalytic Converter (2.25" ID/2" OD)
-   1981 Bmw 533I Direct Fit Standard Catalytic Converter (2.25" ID/2" OD)

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

1983

Bmw

533I

Base; 3.2L; 2.25"; 2.00"

1984

Bmw

533I

Base; 3.2L; 2.25"; 2.00"

1981

Bmw

633Csi

Base; 3.2L; 2.25"; 2.00"

## Details

- **Price:** 723.9 CAD
- **Vendor:** MagnaFlow
- **Type:** Direct Fit Standard Catalytic Converter (2.25" ID/2" OD)
- **Tags:** 1981 Bmw 633Csi, 1983 Bmw 533I, 1984 Bmw 533I, 23558, Auto Parts, Automotive, Catalytic Converter, Direct Fit Standard Catalytic Converter (2.25" ID/2" OD), Direct Replacement, Exhaust Performance, Exhaust System, MagnaFlow, Magnaflow-23558, Muffler, Performance Exhaust, Performance Parts, Vehicle Fitment

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 723.90 CAD | In stock |

## Images

- MagnaFlow 23558 Direct Fit Standard Catalytic Converter (2.25" ID/2" OD)

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> Source: [Standard Auto Part](www.standardautopart.com/products/magnaflow-bmw-533i-catalytic-converter-23558)
> Updated: 2026-06-13