# MagnaFlow 23556 Direct Fit Standard Catalytic Converter (2.5" ID/2.5" OD) for 1985-1988 Bmw 535I 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: 23556
-   Product type: Direct Fit Standard Catalytic Converter (2.5" ID/2.5" OD)
-   Designed for compatible vehicle applications listed on this page

### Vehicle Fitment

-   1985 Bmw 535I, Note: Base; 3.5L; 2.50"; 2.00"
-   1986 Bmw 535I, Note: Base; 3.5L; 2.50"; 2.00"
-   1987 Bmw 535I, Note: Base; 3.5L; 2.50"; 2.00"
-   1988 Bmw 535I, Note: Base; 3.5L; 2.50"; 2.00"
-   1985 Bmw 635Csi, Note: Base; 3.5L; 2.50"; 2.00"
-   1986 Bmw 635Csi, Note: Base; 3.5L; 2.50"; 2.00"
-   1987 Bmw 635Csi, Note: Base; 3.5L; 2.50"; 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 23556.

**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 (2.5" ID/2.5" OD) for Bmw 535I
-   23556 fitment
-   MagnaFlow Direct Fit Standard Catalytic Converter (2.5" ID/2.5" OD)
-   1985 Bmw 535I Direct Fit Standard Catalytic Converter (2.5" ID/2.5" OD)

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

1985

Bmw

535I

Base; 3.5L; 2.50"; 2.00"

1986

Bmw

535I

Base; 3.5L; 2.50"; 2.00"

1987

Bmw

535I

Base; 3.5L; 2.50"; 2.00"

1988

Bmw

535I

Base; 3.5L; 2.50"; 2.00"

1985

Bmw

635Csi

Base; 3.5L; 2.50"; 2.00"

1986

Bmw

635Csi

Base; 3.5L; 2.50"; 2.00"

1987

Bmw

635Csi

Base; 3.5L; 2.50"; 2.00"

## Details

- **Price:** 891.75 CAD
- **Vendor:** MagnaFlow
- **Type:** Direct Fit Standard Catalytic Converter (2.5" ID/2.5" OD)
- **Tags:** 1985 Bmw 535I, 1985 Bmw 635Csi, 1986 Bmw 535I, 1986 Bmw 635Csi, 1987 Bmw 535I, 1987 Bmw 635Csi, 1988 Bmw 535I, 23556, Auto Parts, Automotive, Catalytic Converter, Direct Fit Standard Catalytic Converter (2.5" ID/2.5" OD), Direct Replacement, Exhaust Performance, Exhaust System, MagnaFlow, Magnaflow-23556, Muffler, Performance Exhaust, Performance Parts, Vehicle Fitment

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 891.75 CAD | In stock |

## Images

- MagnaFlow 23556 Direct Fit Standard Catalytic Converter (2.5" ID/2.5" OD)

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/magnaflow-bmw-535i-catalytic-converter-23556)
> Updated: 2026-07-16