Magnaflow

MagnaFlow Conv DF 09-13 Chevy Avalanche 5.3L - 51578

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SKU:
MAG51578
UPC:
841380095664
MPN:
51578
Availability:
Regularly stocked product
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$788.00
Current Stock: 4

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Description

How do I know if this catalytic converter will fit my vehicle?
Confirm fitment using our vehicle selector tool to ensure this MAG Converter Direct Fit precisely matches your car's specifications.

Is this catalytic converter easy to install?
Installing this MAG Converter Direct Fit is straightforward due to its bolt-on design, making it ideal for DIY enthusiasts.

The MAG Converter Direct Fit is engineered for your specific vehicle, offering an easy DIY Install score of 9 for seamless integration. Its highly corrosion-resistant stainless steel construction ensures lasting durability and optimal catalytic conversion efficiency. Trust Magnaflow for a reliable, high-performance replacement that enhances engine breathing and cleaner emissions.

What Owners Say

Owners and enthusiasts consistently cite MagnaFlow as one of the only reliable OEM replacement brands worth considering for catalytic converters. Real-world testing shows the converters perform well, with drivers reporting no problems after thousands of miles of use. The direct-fit models offer solid quality and proper fitment, though some buyers note MagnaFlow can be more performance-oriented—and pricier—than necessary for basic replacement needs. CARB-legal options are available but command premium pricing, sometimes exceeding $1,000 depending on the application. Despite the investment, MagnaFlow has earned its reputation alongside Walker as a trusted alternative when OEM parts aren't available or practical.

Key Features

  • free-flowing mandrel-bent tubing
  • highly corrosion resistant stainless steel construction
  • spun body converter
  • single laser fusion weld
  • compact, low-mass design
  • Federal/EPA Compliant

Why Choose the MAG Converter Direct Fit

Delivers unrestricted exhaust flow for enhanced engine breathing and power.

Provides lasting durability and resistance to rust for years of reliable performance.

Achieves optimal catalytic conversion efficiency for cleaner emissions.

Maximizes exhaust gas velocity for improved throttle response and acceleration.

Who Is This For?

Daily Driving Comfort — 7/10
OEM replacement, direct fit, corrosion resistant.

Street Performance — 6/10
Free-flowing tubing, optimal conversion efficiency.

Easy DIY Install — 9/10
Bolt-on install type, direct fit.

Engine Performance — 6/10
Free-flowing tubing, optimal conversion efficiency.

Fuel Efficiency — 5/10
Optimal catalytic conversion efficiency.

Exhaust Note / Sound — 4/10
Spun body converter, direct fit.

Frequently Asked Questions

How do I confirm if the Magnaflow MAG Converter Direct Fit is compatible with my vehicle?

Confirming fitment with your vehicle is essential for proper installation and function. The MAG Converter Direct Fit is designed as a bolt-on replacement, and you must verify compatibility for your specific year, make, and model before purchase.

Is installing the Magnaflow MAG Converter Direct Fit a difficult process?

Installation of the MAG Converter Direct Fit is designed to be straightforward. Its bolt-on install type allows for an easy DIY process, making it an excellent choice for enthusiasts seeking a hassle-free upgrade, scoring a 9 for Easy DIY Install.

What are the performance benefits of the Magnaflow MAG Converter Direct Fit?

Experience enhanced engine performance and improved throttle response with the MAG Converter Direct Fit. Its free-flowing design supports optimal catalytic conversion, contributing to an "Engine Performance" score of 6, for more efficient power delivery.

Is upgrading from a stock catalytic converter to the Magnaflow MAG Converter Direct Fit worthwhile?

Upgrading is a smart move for improved emissions and durability. The MAG Converter Direct Fit features highly corrosion-resistant stainless steel construction, ensuring lasting performance and resistance to rust, a key technical advantage over standard components.

What material is the Magnaflow MAG Converter Direct Fit constructed from for durability?

The MAG Converter Direct Fit is built for longevity with highly corrosion-resistant stainless steel construction. This robust material ensures years of reliable performance and resistance to rust, a critical factor for any exhaust component.

Important Notices

⚠️ CARB Notice: This product is NOT legal for street use in California under CARB (California Air Resources Board) regulations. For off-road or race use only.

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Additional Information

CARB:
This product is not CARB Legal and not for sale in California
Clearance Item:
N
MPN:
51578
Proposition 65:
N
Case Lot Quantity:
1
Category:
Exhaust, Mufflers & Tips>Catalytic Converter Direct Fit
Install Type:
Bolt-On
Product Level:
OEM Replacement
Daily Driving Comfort:
7/10
Street Performance:
6/10
Easy DIY Install:
9/10
Engine Performance:
6/10
Fuel Efficiency:
5/10
Exhaust Note / Sound:
4/10
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