MAGNAFLOW 21-571 Benz Catalytic Converter 888563178417

( Brand: Magnaflow ), ( Items Included: Catalytic Converter ), ( Placement On Vehicle: Left ), ( Inlet Type: Bolt-on ), ( Body Length: 10.25 In ), ( Labels Certifications: Epa ), ( Inlet Diameter: 2.5 Inch ), ( Features: 100 Accuracy Of Fit, Direct Fit, Spun Body Design, Federal/epa Compliant, Oem Grade ), ( Finish: Stainless Steel ), ( Performance Part: No ), ( Body Shape: Round ), ( Body Type: Spun ), ( Oxygen Sensor Location: Pre Converter And Midbed ), ( Manufacturer Part Number: 21-571 ), ( Overall Length: 71.75 In ), ( California Prop 65 Warning: Warning, Which Is Known To The State Of California To Cause Cancer And Birth Defects Or Other Reproductive Harm. For More Information Go To Www.p65warnings.ca.gov. ), ( Body Width: 4 In ), ( Series: Oem Grade ), ( Substrate Material: Ceramic ), ( Outlet Inside Diameter: 2.5 In ), ( Inlet Inside Diameter: 2.25 In ), ( C.a.r.b. Eo : Not Carb Legal ), ( Oe/oem Part Number: 231 490 20 19 64, A 231 490 20 19 64, A 231 490 19 19 64 ), ( California Air Resources Board: Carb Certified ), ( Outlet Type: Clamp-on ), ( Country Of Origin: United States ), ( UPC: 888563178417 )

Review MAGNAFLOW Oem Grade Catalytic Converter Mercedes benz fits SL550 2013–2020

Introducing the MagnaFlow 21-571 Catalytic Converter, a high-performance replacement catalytic converter designed specifically for the 2013-2020 Mercedes-Benz SL550. This converter is an excellent upgrade for those seeking improved exhaust flow and increased power.

The MagnaFlow 21-571 Catalytic Converter is constructed of premium stainless steel, ensuring durability and resistance to rust and corrosion. It is a direct fit replacement for the original equipment converter, making installation straightforward and hassle-free.

This converter utilizes a 3-inch inlet and outlet diameter, providing increased exhaust flow compared to the factory 2.5-inch diameter. By reducing backpressure in the exhaust system, the MagnaFlow catalytic converter enhances engine performance, resulting in smoother acceleration and increased horsepower.

The MagnaFlow 21-571 Catalytic Converter is designed to meet or exceed federal emissions standards, ensuring that your Mercedes-Benz SL550 remains street legal while delivering improved performance. This converter also features a flow-through design, which allows exhaust gases to flow through the converter more efficiently, reducing the likelihood of exhaust backpressure and enhancing overall engine performance.

Investing in the MagnaFlow 21-571 Catalytic Converter not only provides performance benefits but also contributes to the distinctive sound of a high-performance exhaust system. The converter's durability, combined with its ability to deliver increased power and improved exhaust flow, makes it an excellent choice for Mercedes-Benz SL550 enthusiasts seeking to enhance their vehicle's performance while maintaining emissions compliance.

MagnaFlow 21-571 Catalytic Converter for 2013-2020 Mercedes-Benz SL550: A Detailed Analysis

The MagnaFlow 21-571 catalytic converter is a performance-oriented aftermarket catalytic converter designed specifically for the 2013-2020 Mercedes-Benz SL550. This converter is known for its superior flow characteristics and increased performance compared to the OEM converter. In this analysis, we will discuss the pros and cons of using the MagnaFlow 21-571 catalytic converter on your Mercedes-Benz SL550.

1. Enhanced Performance: The MagnaFlow 21-571 catalytic converter is designed to provide improved exhaust flow, resulting in increased power and torque. This can lead to better acceleration and overall driving performance.

2. Durability: MagnaFlow is a reputable brand known for manufacturing high-quality aftermarket parts. The 21-571 catalytic converter is no exception, with its robust construction and durable materials. This can help reduce the likelihood of failure, especially in high-performance applications.

3. Reduced Backpressure: The MagnaFlow 21-571 catalytic converter's larger diameter and increased flow capacity can help reduce backpressure in the exhaust system. This can lead to better engine responsiveness and improved fuel efficiency.

1. Cost: The MagnaFlow 21-571 catalytic converter is more expensive than the OEM part. This can be a significant investment for some Mercedes-Benz SL550 owners.

2. Loudness: Some users have reported that the MagnaFlow 21-571 catalytic converter produces a louder exhaust note compared to the OEM converter. This can be a concern for those who prefer a quieter driving experience.

3. Emissions Compliance: It is important to note that aftermarket catalytic converters, like the MagnaFlow 21-571, may not be as efficient at reducing emissions as OEM converters. This can result in failed emissions tests and potential fines in some areas.

The MagnaFlow 21-571 catalytic converter offers several advantages, including enhanced performance, durability, and reduced backpressure. However, it also comes with some disadvantages, such as increased cost, louder exhaust note, and potential emissions compliance issues.

For those seeking increased performance and improved driving experience, the MagnaFlow 21-571 catalytic converter can be a worthwhile investment. However, it is crucial to consider the potential costs, noise level, and emissions compliance before making a decision. It is always recommended to check local regulations regarding aftermarket catalytic converters and consult with a professional mechanic or exhaust specialist for proper installation.

part # 21571 prices

• $189.00-$844.00

specifications catalyticonvo:

• for models: Sl550
• for makes: Mercedes
• for years: 2013-2020
• brand: Magnaflow
• items included: Catalytic Converter
• placement on vehicle: Left
• inlet type: Bolt-on
• body length: 10.25 In
• labels certifications: Epa
• inlet diameter: 2.5 Inch
• features: 100 Accuracy Of Fit, Direct Fit, Spun Body Design, Federal/epa Compliant, Oem Grade
• finish: Stainless Steel
• performance part: No
• body shape: Round
• body type: Spun
• oxygen sensor location: Pre Converter And Midbed
• manufacturer part number: 21-571
• overall length: 71.75 In
• california prop 65 warning: Warning, Which Is Known To The State Of California To Cause Cancer And Birth Defects Or Other Reproductive Harm. For More Information Go To Www.p65warnings.ca.gov.
• body width: 4 In
• series: Oem Grade
• substrate material: Ceramic
• outlet inside diameter: 2.5 In
• inlet inside diameter: 2.25 In
• c.a.r.b. eo : Not Carb Legal
• oe/oem part number: 231 490 20 19 64, A 231 490 20 19 64, A 231 490 19 19 64
• california air resources board: Carb Certified
• outlet type: Clamp-on
• country of origin: United States
• upc: 888563178417

payments catalyticonvo:

• other
• wallet: Google-pay
• credit card: Discover

seller catalyticonvo:

• # reviews: 780
• rating: 99.1%

shipping catalyticonvo:

• transit: 3-9 Days
• carrier: UPS
• cost: $0.00
• service: UPS Ground Saver
• type: Fixed
• class: Economy

offer catalyticonvo:

• best offers: True
• availability: In Stock
• sold: 0
• options: Ship-to-home
• started: January 12, 2026
• quantity: 1

general catalyticonvo:

• Car Truck Parts Accessories > Exhaust Emission Systems > Catalytic Converters
• condition: Used

returns catalyticonvo:

• policy: No Returns

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