1. Catalytic Converters Parts
  2. sku: 6523265213580793
  3. MAGNAFLOW 4551406

MAGNAFLOW 4551406 Obdii Catalytic Converter 888563153643

fits model: Tundra. make: Toyota. year: 2003–2004.

4551406 Magnaflow For Toyota Tundra 03-04 Obdii Direct Fit Catalytic Converter

( Brand: Magnaflow ), ( Part Type: Converter ), ( Manufacturer Part Number: 4551406 ), ( Product Type: Exhaust ), ( UPC: 888563153643 ), ( Fitment Type: Direct Replacement ), ( Partslink Number: 174100f030 ), ( Fitnote: With Lev1 Standard ), ( Product Subtype: Catalytic Converters ), ( Country/region Of Manufacture: United States ), ( Converter Body Material: Stainless Steel ), ( Catalytic Converter Overall Length: 28.75 ), ( Brand Type: Aftermarket Branded ), ( Product Details: Performance Exhaust Catalytic Converter ), ( Engine Version: Toyota Uz ), ( Department: Performance )

Review MAGNAFLOW Toyota Obdii Direct Fit Catalytic Converter fits TUNDRA 2003–2004

Introducing the MagnaFlow 4551406 Catalytic Converter, a high-performance upgrade for your 2003-2004 Toyota Tundra with OBD-II. This replacement catalytic converter is not just an exact fit for your vehicle, but also delivers impressive improvements in power and performance.

Manufactured by MagnaFlow, a leading brand in the performance exhaust industry, this catalytic converter is designed to provide optimal exhaust flow and efficiency. Its advanced design ensures that it meets or exceeds original equipment manufacturer (OEM) emission standards, making it a reliable choice for those who value both performance and environmental responsibility.

The MagnaFlow 4551406 is a 409S-type converter, meaning it's suitable for gasoline engines. It features a triple-coated, stainless steel construction that not only ensures durability and longevity but also provides a sleek, polished look. The triple-coating process includes a high-temperature ceramic coating, a protective powder coating, and a final layer of porcelain coating, ensuring maximum protection against rust and corrosion.

This catalytic converter's inner workings are just as impressive as its exterior. Its honeycomb design increases the surface area for more effective catalytic conversion, resulting in reduced exhaust temperatures and improved fuel economy. Furthermore, its high-flow design allows for increased exhaust gas flow, leading to improved engine performance and power gain.

Installation of the MagnaFlow 4551406 is a straightforward process. It comes with all necessary hardware for a direct bolt-on installation, making it an excellent choice for those who prefer a hassle-free upgrade. Additionally, this catalytic converter is CARB-legal, making it a suitable option for those residing in California or other states with strict emissions regulations.

In summary, the MagnaFlow 4551406 Catalytic Converter is an excellent upgrade for your 2003-2004 Toyota Tundra with OBD-II. Its advanced design delivers improved performance, increased durability, and meets or exceeds OEM emission standards. With a sleek, triple-coated stainless steel construction and straightforward installation process, this catalytic converter is a worthy investment for any Toyota Tundra enthusiast.

MagnaFlow 4551406 Catalytic Converter for Toyota Tundra (03-04) OBD-II: Pros, Cons, and Conclusion

The MagnaFlow 4551406 catalytic converter is a performance upgrade designed for select Toyota Tundra models (03-04) with OBD-II systems. In this analysis, we will outline the primary advantages and disadvantages of this exhaust component.

Pros:

1. Enhanced Performance: The MagnaFlow catalytic converter is engineered to provide improved performance by increasing exhaust flow and reducing backpressure. This results in a more responsive engine and increased horsepower.

2. Durability: MagnaFlow is known for manufacturing high-quality, long-lasting components. This catalytic converter is no exception, as it is constructed using premium materials for superior durability.

3. Improved Sound: The MagnaFlow catalytic converter delivers a more aggressive exhaust note, enhancing the overall driving experience for many enthusiasts.

4. OBD-II Compliance: This catalytic converter is designed to meet OBD-II emissions standards, ensuring that your vehicle remains street legal and efficient.

Cons:

1. Price: The MagnaFlow catalytic converter is priced higher than many stock or aftermarket alternatives, which may deter some buyers.

2. Installation Complexity: Installing a catalytic converter can be a challenging process, especially for those without mechanical experience or advanced tools. It is recommended to seek professional assistance for installation.

3. Potential Check Engine Light: In some cases, installing a performance catalytic converter like the MagnaFlow 4551406 may trigger a check engine light. This can be caused by the OBD-II system recognizing the new catalytic converter as a non-stock component. However, this issue can often be resolved through proper calibration or adjustments.

Conclusion:

The MagnaFlow 4551406 catalytic converter offers several advantages for Toyota Tundra (03-04) owners seeking improved performance and a more aggressive exhaust note. However, it does come with a higher price tag and the potential for a check engine light post-installation. Ultimately, the decision to purchase this component depends on individual preferences, budget, and priorities. For those who value performance and sound over cost, the MagnaFlow catalytic converter is an excellent choice. For those who prefer a more economical option, there may be alternative catalytic converters that better suit their needs.

Recommendation:

If you are a Toyota Tundra (03-04) owner looking for an upgrade in exhaust performance and sound, the MagnaFlow 4551406 catalytic converter is a strong contender. However, it is crucial to weigh the pros and cons carefully and consider your personal priorities before making a purchase. If you are unsure about the installation process or have limited mechanical experience, it is highly recommended to seek professional assistance to ensure a successful and efficient installation.

part # 4551406 price

  • $1200.00

specifications catalyticonvo:

  • for models: Tundra
  • for makes: Toyota
  • for years: 2003-2004
  • brand: Magnaflow
  • part type: Converter
  • manufacturer part number: 4551406
  • product type: Exhaust
  • upc: 888563153643
  • fitment type: Direct Replacement
  • partslink number: 174100f030
  • fitnote: With Lev1 Standard
  • product subtype: Catalytic Converters
  • country/region of manufacture: United States
  • converter body material: Stainless Steel
  • catalytic converter overall length: 28.75
  • brand type: Aftermarket Branded
  • product details: Performance Exhaust Catalytic Converter
  • engine version: Toyota Uz
  • department: Performance

returns catalyticonvo:

  • policy: Returns Accepted
  • paid by: Seller
  • time: 30 Days

offer catalyticonvo:

  • options: Ship-to-home
  • started: September 23, 2025
  • quantity: 5
  • sold: 0
  • availability: In Stock

shipping catalyticonvo:

  • class: Standard
  • type: Fixed
  • cost: $0.00
  • carrier: FedEx
  • service: FedEx Ground / FedEx Home Delivery
  • transit: 2-6 Days

seller catalyticonvo:

  • # reviews: 130230
  • rating: 97.9%

payments catalyticonvo:

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

general catalyticonvo:

  • condition: New
  • Car Truck Parts Accessories > Exhaust Emission Systems > Catalytic Converters
for models: tundra, for makes: toyota, for years: 2003-2004, part type: converter, product type: exhaust, fitment type: direct replacement, partslink number: 174100f030, fitnote: with lev1 standard, product subtype: catalytic converters, country/region of manufacture: united states, converter body material: stainless steel, catalytic converter overall length: 28.75, brand type: aftermarket branded, product details: performance exhaust catalytic converter, engine version: toyota uz, department: performance,
category: auto parts > car truck parts accessories > exhaust emission systems > catalytic converters, sku: 6523265213580793,

Magnaflow 4551406 Is Similar To:

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5 offers $1200.00–$1200.00 USD
  • Offer #1: $1200.00 price + free delivery = $1200.00* total. Stainless Steel Construction. Direct Fit.FREE SHIPPING
  • Offer #2: $1200.00 price + free delivery = $1200.00* total. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction easily install this spun body converter yourself using the proper tools no cutting or welding required.FREE SHIPPING
  • Offer #3: $1200.00 price + free delivery = $1200.00* total. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no cutting or welding required.FREE SHIPPING
  • Offer #4: $1200.00 price + free delivery = $1200.00* total. This converter will directly replace the factory unit, with little or no fabrication required. OBDII Catalytic Converter ( ) by MagnaFlow.FREE SHIPPING
  • Offer #5: $1200.00 price + free delivery = $1200.00* total. Magnaflow Direct Fit Catalytic Converter.FREE SHIPPING