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Deal.ai › MagnaFlow › Magnaflow Catalytic Converter
MagnaFlow
Magnaflow 557710 Direct Fit California Catalytic Converter

Magnaflow 557710 Direct Fit California Catalytic Converter

4.3(9 ratings)

Best price now

$348.00at eBayChecked 1 h ago

60% under what the other stores charge

Compared across 14 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission.

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Price facts

  • Lowest price today: $348.00 at eBay (checked Nov 12, 2026).
  • Checked at 14 stores.

Our take on the Magnaflow 557710 Direct Fit California Catalytic Converter

The MagnaFlow 557710 is a direct-fit catalytic converter built to California's CARB standards, so it is legal for registered vehicles in CARB states where a generic converter is not. It bolts on in place of the factory unit using OEM-style mounting, stainless steel construction and the gaskets and hardware in the box, with no welding or fabrication. That makes it a straightforward replacement for a failed or damaged stock converter on the vehicles it is listed to fit. Against universal-fit converters it costs more and fits fewer vehicles, but it avoids cutting and welding and clears emissions inspection in CARB states.

Best forDrivers in California and other CARB states who need a legal replacement convertOwners of a vehicle with a failed or damaged OEM converterBuyers who want a bolt-on fit without welding or fabricationKeeping a car emissions-legal for inspection
Pros
  • CARB-compliant, legal for registered vehicles in CARB states
  • Direct-fit, OEM-style mounting with no welding or fabrication
  • Stainless steel body resists corrosion
  • High-flow substrate keeps exhaust flowing while cutting emissions
  • Gaskets and hardware included for a complete install
Cons
  • Fits only the specific vehicles MagnaFlow lists; not universal
  • Costs more than a generic universal-fit converter
  • CARB approval does not carry over to a different engine or model year
  • No power gain; it restores stock emissions performance, nothing more

Magnaflow 557710 Direct Fit California Catalytic Converter prices at every store

  • AutoplicityNew

    In stock

    $796.00Free shippingChecked 1 h ago
    Visit Autoplicity
  • AutoZoneNew

    In stock

    $796.99+ $4.99 shippingChecked 1 h ago
    Visit AutoZone
  • MagnaFlow ConvertersNew

    In stock

    $867.00Free shippingChecked 1 h ago
    Visit MagnaFlow Converters
  • eBayNew

    Availability unknownSold by cptbrooks2

    $348.00Checked 1 h ago
    Visit eBay
  • BB WheelsNew

    Availability unknown

    $750.97Checked 1 h ago
    Visit BB Wheels
  • WalmartNew

    Availability unknownSold by BuyAutoParts

    $867.00Checked 1 h ago
    Visit Walmart
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $867.00Free shippingChecked 1 h ago
    Visit Amazon
  • Summit RacingNew

    Availability unknown

    $867.00Checked 1 h ago
    Visit Summit Racing
  • AutoTalentNew

    Availability unknown

    $867.00Checked 1 h ago
    Visit AutoTalent
  • CARiD.comNew

    Availability unknown

    $867.00Checked 1 h ago
    Visit CARiD.com
  • JEGS High PerformanceNew

    Availability unknown

    $867.00Checked 1 h ago
    Visit JEGS High Performance
  • JM Auto RacingNew

    Availability unknown

    $867.00Checked 1 h ago
    Visit JM Auto Racing
  • O'Reilly Auto PartsNew

    Availability unknown

    $867.99Checked 1 h ago
    Visit O'Reilly Auto Parts
  • Advance Auto PartsNew

    Availability unknown

    $867.99Checked 1 h ago
    Visit Advance Auto Parts

Store links may earn us a commission.

Magnaflow 557710 Direct Fit California Catalytic Converter price history

Lowest price we've seen: $348.00 on Nov 13 at eBay. Tracked across 14 stores since Nov 13.

About the Magnaflow 557710 Direct Fit California Catalytic Converter

The MagnaFlow 557710 is a direct-fit catalytic converter made to replace the original converter on compatible vehicles. It is California CARB-compliant, so it can be installed legally in CARB states. It is designed to meet California's emissions standards.

It has a stainless steel construction for corrosion resistance. A high-flow catalytic substrate supports exhaust flow and emissions reduction. The OEM-style mounting configuration fits precisely, and installation needs no welding or fabrication.

Gaskets and hardware needed for installation are included.

Part number
557710
Brand
MagnaFlow
Type
Direct-fit catalytic converter
Compliance
California CARB-compliant
Material
Stainless steel
Color
Silver
Mounting
OEM-style configuration
Installation
No welding or fabrication needed
In the box
Gaskets and installation hardware

Specifications

color
SilverSource

Questions and answers

Is this converter legal in California?
Yes. It is CARB-compliant, which is what California and other CARB states require for a registered vehicle. Check that your exact vehicle is on MagnaFlow's application list before buying.
How is it different from a universal catalytic converter?
A universal converter needs cutting, welding and custom pipe work. This one is direct-fit with OEM-style mounting, so it bolts in place and includes the gaskets and hardware.
Will it fit my car?
Fitment is vehicle-specific, tied to engine and model year. Confirm your vehicle against MagnaFlow's application data for part 557710; it will not fit other applications.
Does it add power or change the exhaust sound?
No. It is a stock replacement that restores emissions performance and exhaust flow. Expect the car to run and sound as it did with the original converter.
What is in the box?
The converter plus the gaskets and hardware needed for installation. No welding or fabrication is required.
Can I install it myself?
Many owners do it with hand tools and jack stands, since it bolts to the existing flanges. Rusted or seized factory bolts are the usual snag, so a shop is safer on older cars.
Where is the Magnaflow 557710 Direct Fit California Catalytic Converter cheapest?
At eBay, for $348.00, 60% under what the other stores charge, as of our latest check.
What do buyers say about the Magnaflow 557710 Direct Fit California Catalytic Converter?
Rated 4.3 out of 5 from 9 ratings.
Where can I buy the Magnaflow 557710 Direct Fit California Catalytic Converter?
14 stores we checked sell it, including Walmart, Amazon, eBay, BB Wheels, Autoplicity.

Stores we've priced the Magnaflow 557710 Direct Fit California Catalytic Converter at

  • Autoplicity deals and prices
  • Walmart deals and prices

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