# MagnaFlow 5551178 Direct-Fit Catalytic Converter 5551178 for 2007-2011 Mercedes-Benz R350

### Performance Overview

The MagnaFlow 5551178 Direct-Fit Catalytic Converter is engineered to keep your emissions system functioning optimally, specifically designed for the 2007-2011 Mercedes-Benz R350. This unit features high-quality, corrosion-resistant stainless steel construction and a spun body design that mirrors the original equipment for seamless integration. Installation is straightforward, allowing you to replace your old converter without the need for cutting or welding. The free-flowing mandrel-bent tubing enhances exhaust flow, contributing to improved thermal efficiency. The single laser fusion weld minimizes leak potential, ensuring long-lasting performance.

### Key Features

-   Brand: MagnaFlow
-   Part number: 5551178
-   Product type: Direct-Fit Catalytic Converter 5551178 for 2007-2011 Mercedes-Benz R350
-   Designed for compatible vehicle applications listed on this page

### Vehicle Fitment

-   Mercedes-Benz R350 2007 - 2011 4Matic
-   Mercedes-Benz R350 2008 - 2009 Base

### 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 5551178.

**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 Catalytic Converter 5551178 for 2007-2011 Mercedes-Benz R350 for universal fitment
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-   universal MagnaFlow Direct-Fit Catalytic Converter 5551178 for 2007-2011 Mercedes-Benz R350

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

Mercedes-Benz R350 2007 - 2011 4Matic

Mercedes-Benz R350 2008 - 2009 Base

## Details

- **Price:** 3178.4 CAD
- **Vendor:** MagnaFlow
- **Type:** Direct-Fit Catalytic Converter 5551178 for 2007-2011 Mercedes-Benz R350
- **Tags:** 5551178, Auto Parts, Automotive, Catalytic Converter, Direct Replacement, Direct-Fit Catalytic Converter 5551178 for 2007-2011 Mercedes-Benz R350, Exhaust Performance, Exhaust System, MagnaFlow, Muffler, Performance Exhaust, Performance Parts, Vehicle Fitment

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 3178.40 CAD | In stock |

## Images

- MagnaFlow 5551178 Direct-Fit Catalytic Converter 5551178 for 2007-2011 Mercedes-Benz R350

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/magnaflow-catalytic-converter-universal-5551178)
> Updated: 2026-07-06