# MagnaFlow 5481578 California Direct Fit Catalytic Converter (2.5" ID/2.5" OD) for 2009-2013 Chevrolet Avalanche 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: 5481578
-   Product type: California Direct Fit Catalytic Converter (2.5" ID/2.5" OD)
-   Designed for compatible vehicle applications listed on this page

### Vehicle Fitment

-   2009 Chevrolet Avalanche, Note: Lt, Ltz; 6.0L; 2.50"; 2.50"
-   2009 Chevrolet Silverado 1500, Note: Ls, Lt, Ltz, Wt; 4.3L, 4.8L, 6.0L; 2.50"; 2.50"
-   2010 Chevrolet Silverado 1500, Note: Wt; 4.3L; 2.50"; 2.50"
-   2011 Chevrolet Silverado 1500, Note: Ls, Wt; 4.3L; 2.50"; 2.50"
-   2012 Chevrolet Silverado 1500, Note: Wt; 4.3L; 2.50"; 2.50"
-   2013 Chevrolet Silverado 1500, Note: Wt; 4.3L; 2.50"; 2.50"
-   2009 Chevrolet Suburban 1500, Note: Lt, Ltz; 6.0L; 2.50"; 2.50"
-   2009 Chevrolet Tahoe, Note: Ls; 4.8L; 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 5481578.

**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

-   California Direct Fit Catalytic Converter (2.5" ID/2.5" OD) for Chevrolet Avalanche
-   5481578 fitment
-   MagnaFlow California Direct Fit Catalytic Converter (2.5" ID/2.5" OD)
-   2009 Chevrolet Avalanche California Direct Fit Catalytic Converter (2.5" ID/2.5" OD)

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

2009

Chevrolet

Avalanche

Lt, Ltz; 6.0L; 2.50"; 2.50"

2009

Chevrolet

Silverado 1500

Ls, Lt, Ltz, Wt; 4.3L, 4.8L, 6.0L; 2.50"; 2.50"

2010

Chevrolet

Silverado 1500

Wt; 4.3L; 2.50"; 2.50"

2011

Chevrolet

Silverado 1500

Ls, Wt; 4.3L; 2.50"; 2.50"

2012

Chevrolet

Silverado 1500

Wt; 4.3L; 2.50"; 2.50"

2013

Chevrolet

Silverado 1500

Wt; 4.3L; 2.50"; 2.50"

2009

Chevrolet

Suburban 1500

Lt, Ltz; 6.0L; 2.50"; 2.50"

2009

Chevrolet

Tahoe

Ls; 4.8L; 2.50"; 2.50"

2009

GMC

Sierra 1500

Sl, Sle, Slt, Wt; 4.3L, 4.8L, 6.0L; 2.50"; 2.50"

2010

GMC

Sierra 1500

Wt; 4.3L; 2.50"; 2.50"

2011

GMC

Sierra 1500

Wt; 4.3L; 2.50"; 2.50"

2012

GMC

Sierra 1500

Wt; 4.3L; 2.50"; 2.50"

2013

GMC

Sierra 1500

Wt; 4.3L; 2.50"; 2.50"

2009

GMC

Yukon

Sle; 4.8L; 2.50"; 2.50"

2009

GMC

Yukon Xl 1500

Sle, Slt; 6.0L; 2.50"; 2.50"

## Details

- **Price:** 5537.55 CAD
- **Vendor:** MagnaFlow
- **Type:** California Direct Fit Catalytic Converter (2.5" ID/2.5" OD)
- **Tags:** 2009 Chevrolet Avalanche, 2009 Chevrolet Silverado 1500, 2009 Chevrolet Suburban 1500, 2009 Chevrolet Tahoe, 2009 GMC Sierra 1500, 2009 GMC Yukon, 2009 GMC Yukon Xl 1500, 2010 Chevrolet Silverado 1500, 2010 GMC Sierra 1500, 2011 Chevrolet Silverado 1500, 2011 GMC Sierra 1500, 2012 Chevrolet Silverado 1500, 2012 GMC Sierra 1500, 2013 Chevrolet Silverado 1500, 2013 GMC Sierra 1500, 5481578, Auto Parts, Automotive, California Direct Fit Catalytic Converter (2.5" ID/2.5" OD), Catalytic Converter, Direct Replacement, Exhaust Performance, Exhaust System, MagnaFlow, Magnaflow-5481578, Muffler, Performance Exhaust, Performance Parts, Vehicle Fitment

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 5537.55 CAD | In stock |

## Images

- MagnaFlow 5481578 California Direct Fit Catalytic Converter (2.5" ID/2.5" OD)

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/magnaflow-chevrolet-avalanche-catalytic-converter-carb-5481578)
> Updated: 2026-07-16