# MagnaFlow 551128 Direct Fit California Stainless Catalytic Converter (4.25" ID/2" OD) for 2008-2014 Nissan Altima and More

### Performance Overview

Magnaflow's California Catalytic Converter is designed to be CARB compliant. The catalytic converter's ribbed body is designed to minimize distortion and expansion of the body to hold the ceramic catalyst in place. magnaflow's Catalytic Converters are made of stainless steel and are backed by their limited lifetime warranty.

### Key Features

-   Brand: MagnaFlow
-   Part number: 551128
-   Product type: Direct Fit California Stainless Catalytic Converter (4.25" ID/2" OD)
-   Designed for compatible vehicle applications listed on this page

### Vehicle Fitment

-   2008 Nissan Altima, Note: Se, Sl; 3.5L; 4.25"; 2.00"
-   2009 Nissan Altima, Note: Se, Sl; 3.5L; 4.25"; 2.00"
-   2010 Nissan Altima, Note: Sr; 3.5L; 4.25"; 2.00"
-   2011 Nissan Altima, Note: Sr; 3.5L; 4.25"; 2.00"
-   2012 Nissan Altima, Note: Sr; 3.5L; 4.25"; 2.00"
-   2009 Nissan Maxima, Note: S, Sv; 3.5L; 4.25"; 2.00"
-   2010 Nissan Maxima, Note: S, Sv; 3.5L; 4.25"; 2.00"
-   2011 Nissan Maxima, Note: S, Sv; 3.5L; 4.25"; 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 551128.

**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 California Stainless Catalytic Converter (4.25" ID/2" OD) for Nissan Altima
-   551128 fitment
-   MagnaFlow Direct Fit California Stainless Catalytic Converter (4.25" ID/2" OD)
-   2008 Nissan Altima Direct Fit California Stainless Catalytic Converter (4.25" ID/2" OD)

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

2008

Nissan

Altima

Se, Sl; 3.5L; 4.25"; 2.00"

2009

Nissan

Altima

Se, Sl; 3.5L; 4.25"; 2.00"

2010

Nissan

Altima

Sr; 3.5L; 4.25"; 2.00"

2011

Nissan

Altima

Sr; 3.5L; 4.25"; 2.00"

2012

Nissan

Altima

Sr; 3.5L; 4.25"; 2.00"

2009

Nissan

Maxima

S, Sv; 3.5L; 4.25"; 2.00"

2010

Nissan

Maxima

S, Sv; 3.5L; 4.25"; 2.00"

2011

Nissan

Maxima

S, Sv; 3.5L; 4.25"; 2.00"

2012

Nissan

Maxima

S, Sv; 3.5L; 4.25"; 2.00"

2013

Nissan

Maxima

S, Sv; 3.5L; 4.25"; 2.00"

2014

Nissan

Maxima

S, Sv; 3.5L; 4.25"; 2.00"

## Details

- **Price:** 1657.35 CAD
- **Vendor:** MagnaFlow
- **Type:** Direct Fit California Stainless Catalytic Converter (4.25" ID/2" OD)
- **Tags:** 2008 Nissan Altima, 2009 Nissan Altima, 2009 Nissan Maxima, 2010 Nissan Altima, 2010 Nissan Maxima, 2011 Nissan Altima, 2011 Nissan Maxima, 2012 Nissan Altima, 2012 Nissan Maxima, 2013 Nissan Maxima, 2014 Nissan Maxima, 551128, Auto Parts, Automotive, Catalytic Converter, Direct Fit California Stainless Catalytic Converter (4.25" ID/2" OD), Direct Replacement, Exhaust Performance, Exhaust System, MagnaFlow, Magnaflow-551128, Muffler, Performance Exhaust, Performance Parts, Vehicle Fitment

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1657.35 CAD | In stock |

## Images

- MagnaFlow 551128 Direct Fit California Stainless Catalytic Converter (4.25" ID/2" OD)

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/magnaflow-nissan-altima-catalytic-converter-carb-551128)
> Updated: 2026-07-16