# MagnaFlow 23555 Direct Fit Standard Catalytic Converter (2.5" ID/2.5" OD) for 1975-1989 Porsche 911

### 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: 23555
-   Product type: Direct Fit Standard Catalytic Converter (2.5" ID/2.5" OD)
-   Designed for compatible vehicle applications listed on this page

### Vehicle Fitment

-   1975 Porsche 911, Note: Carrera, S; 2.7L; 2.50"; 2.50"
-   1978 Porsche 911, Note: Sc; 3.0L; 2.50"; 2.50"
-   1979 Porsche 911, Note: Sc; 3.0L; 2.50"; 2.50"
-   1980 Porsche 911, Note: Sc; 3.0L; 2.50"; 2.50"
-   1981 Porsche 911, Note: Sc; 3.0L; 2.50"; 2.50"
-   1982 Porsche 911, Note: Sc; 3.0L; 2.50"; 2.50"
-   1983 Porsche 911, Note: Sc; 3.0L; 2.50"; 2.50"
-   1984 Porsche 911, Note: Carrera; 3.2L; 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 23555.

**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 Porsche 911
-   23555 fitment
-   MagnaFlow Direct Fit Standard Catalytic Converter (2.5" ID/2.5" OD)
-   1975 Porsche 911 Direct Fit Standard Catalytic Converter (2.5" ID/2.5" OD)

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

1975

Porsche

911

Carrera, S; 2.7L; 2.50"; 2.50"

1978

Porsche

911

Sc; 3.0L; 2.50"; 2.50"

1979

Porsche

911

Sc; 3.0L; 2.50"; 2.50"

1980

Porsche

911

Sc; 3.0L; 2.50"; 2.50"

1981

Porsche

911

Sc; 3.0L; 2.50"; 2.50"

1982

Porsche

911

Sc; 3.0L; 2.50"; 2.50"

1983

Porsche

911

Sc; 3.0L; 2.50"; 2.50"

1984

Porsche

911

Carrera; 3.2L; 2.50"; 2.50"

1985

Porsche

911

Carrera; 3.2L; 2.50"; 2.50"

1986

Porsche

911

Carrera; 3.2L; 2.50"; 2.50"

1987

Porsche

911

Carrera; 3.2L; 2.50"; 2.50"

1988

Porsche

911

Carrera; 3.2L; 2.50"; 2.50"

1989

Porsche

911

Carrera, Speedster; 3.2L; 2.50"; 2.50"

## Details

- **Price:** 618.49 CAD
- **Vendor:** MagnaFlow
- **Type:** Direct Fit Standard Catalytic Converter (2.5" ID/2.5" OD)
- **Tags:** 1975 Porsche 911, 1978 Porsche 911, 1979 Porsche 911, 1980 Porsche 911, 1981 Porsche 911, 1982 Porsche 911, 1983 Porsche 911, 1984 Porsche 911, 1985 Porsche 911, 1986 Porsche 911, 1987 Porsche 911, 1988 Porsche 911, 1989 Porsche 911, 23555, Auto Parts, Automotive, Catalytic Converter, Direct Fit Standard Catalytic Converter (2.5" ID/2.5" OD), Direct Replacement, Exhaust Performance, Exhaust System, MagnaFlow, Magnaflow-23555, Muffler, Performance Exhaust, Performance Parts, Vehicle Fitment

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 618.49 CAD | In stock |

## Images

- MagnaFlow 23555 Direct Fit Standard Catalytic Converter (2.5" ID/2.5" OD)

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> Source: [Standard Auto Part](www.standardautopart.com/products/magnaflow-porsche-911-catalytic-converter-23555)
> Updated: 2026-06-13