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Catalytic Converter for 2003 Mitsubishi Eclipse

We have 72 Items In-stock. Select your vehicle's Submodel to continue.

Evan Fischer 48-State Legal (No CA and NY) Catalytic Converter

This Evan Fischer 48-State Legal (No CA and NY) Direct Fit Catalytic Converter is manufactured from high quality and durable stainless steel catalytic case, 16-gauge aluminized steel tubes, and heat shield for long lasting durability and better protection for your vehicle. It also features honeycomb catalyst that has maximum surface area flow. OBD-II and EPA compliant catalytic converter; It is a high quality aftermarket replacement for the OEM catalytic converter. Designed for easy installation - it requires no cutting or welding!

Evan Fischer also offers comprehensive manifold converter assemblies for newer vehicle models!

  • OBD-II And EPA compliant catalytic converter
  • Requires NO cutting or welding
  • Honeycomb catalyst with maximum surface area flow
  • Covered by 5-year or 50,000-mile limited warranty
  • Not legal for sale in California and New York; Cannot be shipped to CA or NY addresses

Evan Fischer Front Catalytic Converter - Manifold Converter, Direct Fit

Best Seller
$253.19 $359.87 You Save $106.68 (30%)
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Availability: In Stock
Only from APW Rewards
  • Brand SKU#: Evan Fischer REPC960313
  • Location: Front
  • Type: Manifold Converter
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Dimensions: 16 in. overall length
  • Inlet Type: Single (9-bolt fixed flange)
  • Outlet Type: Single (3-bolt fixed flange)
  • Oxygen Sensor Ports: 1
  • Warranty: 5-year or 50,000-mile limited warranty
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Fits the following 2003 Mitsubishi Eclipse Submodels

  • 4 Cyl 2.4L | RS, GS, Spyder GS
See more

Eastern - Universal Catalytic Converters (48-State Legal - No CA, No NY)

EASTERN - UNIVERSAL CATALYTIC CONVERTERS (48-STATE LEGAL - NO CA, NO NY)

Eastern's universal catalytic converters are durably designed and powered with NANO technology for highly efficient, long-lasting function. Since 1976, Eastern Catalytic has specialized in engineering world-class catalytic converters for the automotive aftermarket.

  • NANO technology delivers better converter efficiency
  • Brings optimum engine performance
  • Complete range of outlet and inlet diameters
  • Non-directional for ease of installation
Note:
  • 48-state legal - not for sale or use in California or New York; cannot be shipped to California or New York addresses.

Eastern ECO II Rear Catalytic Converter - Traditional Converter, Semi-Universal

Best Seller
$68.79 $81.17 You Save $12.38 (15%)
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Availability: In Stock
Only from APW Rewards
  • Brand SKU#: Eastern 83165
  • Location: Rear
  • Series: Eastern ECO II
  • Type: Traditional Converter
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Semi-Universal
  • Quantity Sold: Sold Individually
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Dimensions: 10 in. L x 6 in. W x 4.25 in. H, 14 in. overall length
  • Replaces OE Number: F42Z5E212C
  • Warranty: 5-year or 50,000-mile Eastern limited warranty
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Fits the following 2003 Mitsubishi Eclipse Submodels

  • 6 Cyl 3.0L | GT, Spyder GT, GTS, Spyder GTS
See more
Customer Review: (see review/s)
  • Great product would buy it again and refer this to friends. Thought the installation is really easy. Professional installation is best

    posted by: Slim on May 26, 2015

  • view all 6 reviews

Eastern Standard Rear Catalytic Converter - Traditional Converter, Semi-Universal

Best Seller
$51.66 $60.96 You Save $9.30 (15%)
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Availability: In Stock
Only from APW Rewards
  • Brand SKU#: Eastern 70316
  • Location: Rear
  • Series: Eastern Standard
  • Type: Traditional Converter
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Semi-Universal
  • Quantity Sold: Sold Individually
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Dimensions: 6 x 4.25 x 10 in., 14 in. overall length
  • Warranty: 5-year or 50,000-mile Eastern limited warranty
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Fits the following 2003 Mitsubishi Eclipse Submodels

  • 4 Cyl 2.4L | RS, GS, Spyder GS
See more
Customer Review: (see review/s)
  • Came very fast. I ordered it round a lil before 1 on a tuesday and it was at my house friday morning. It was the right part and the price was way less than if I had bought it from a local auto parts store. Two things to know; you need to be sure everything that caused it to go bad has been fixed if not you will eventually kill the new one so get your check engine light off first. Clean out your egr valve if you didnt need to replace it might as well replace your pcv valve cuz its only $3 and clean out the area where its seated and if an O2 sensor is bad replace it the only two on this car (2000 model year) are right in the area of catalytic. Also if your flex pipe is bad you can just a flex pipe so you may be able to piece it together without having to buy the converter with the pipe to manifold. I ended up replacing or cleaning almost my whole emissions system to get it to pass the state test. With the help of this site and my own ingenuity what would have been over $500 in parts cost less than $140 not bad at all!!

    posted by: In Cleveland on January 26, 2014

  • view all 8 reviews

Eastern - OE Replacement Catalytic Converters (48-State Legal - No CA, No NY)

EASTERN - OE REPLACEMENT CATALYTIC CONVERTERS (48-STATE LEGAL - NO CA, NO NY)

Eastern's OE replacement catalytic converters are equipped with advanced design elements and NANO technology for maximum performance. Since 1976, Eastern Catalytic has specialized in engineering world-class catalytic converters for the automotive aftermarket.

  • NANO technology provides greater converter efficiency
  • Designed with advanced materials and OE-style flex assemblies and flanges
  • Facilitates optimal engine performance
  • Full range of outlet and inlet diameters
Note:
  • 48-state legal - not for sale or use in New York or California; cannot be shipped to New York or California addresses.

Eastern Standard Rear Catalytic Converter - Traditional Converter, Direct Fit

Best Seller
$224.00 $264.32 You Save $40.32 (15%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Brand SKU#: Eastern 40452
  • Location: Rear
  • Series: Eastern Standard
  • Type: Traditional Converter
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Dimensions: 52.5 in. overall length
  • Warranty: 5-year or 50,000-mile Eastern limited warranty
See more

Fits the following 2003 Mitsubishi Eclipse Submodels

  • 4 Cyl 2.4L | RS, GS, Spyder GS
See more
Customer Review: (see review/s)
  • the unit got to me asap - it fit proper and corrected the problem - code 4021

    posted by: tp on November 6, 2011

Eastern ECO II Front, Passenger Side Catalytic Converter - Traditional Converter, Direct Fit

Best Seller
$130.33 $153.79 You Save $23.46 (15%)
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Availability: In Stock
Only from APW Rewards
  • Brand SKU#: Eastern 40416
  • Location: Front, Passenger Side
  • Series: Eastern ECO II
  • Type: Traditional Converter
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Dimensions: 13.5 in. overall length
  • Replaces OE Number: MR340065, MR464479, MR968966
  • Warranty: 5-year or 50,000-mile Eastern limited warranty
See more

Fits the following 2003 Mitsubishi Eclipse Submodels

  • 6 Cyl 3.0L | GT, Spyder GT, GTS, Spyder GTS
See more
Customer Review: (see review/s)
  • Do not have the studs like the genuine from factory and do not have the brackets to install the heat shields back. Wasn't able to install the heat shields back. Other than that I think is a great product. I think it still can be improve and add the features like studs and brackets for installing heat shields back. Thanks!!

    posted by: on November 13, 2008

Eastern ECO II Front, Driver Side Catalytic Converter - Traditional Converter, Direct Fit

Best Seller
$142.30 $167.91 You Save $25.61 (15%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Brand SKU#: Eastern 40415
  • Location: Front, Driver Side
  • Series: Eastern ECO II
  • Type: Traditional Converter
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Dimensions: 8.5 in. overall length
  • Warranty: 5-year or 50,000-mile Eastern limited warranty
See more

Fits the following 2003 Mitsubishi Eclipse Submodels

  • 6 Cyl 3.0L | GT, Spyder GT, GTS, Spyder GTS
See more
Customer Review: (see review/s)
  • Very good product and easy to install!!! No welding or modifications needed!!! Fits perfect on the factory pipes!!!

    posted by: JB on November 17, 2009

  • view all 3 reviews

Magnaflow 49-State Legal Semi-Universal Catalytic Converter

  • Not legal for use in California or in states adopting the California emissions standards
  • Semi-universal design – cut out your old catalytic converter and weld in the new one
  • Stainless Steel Construction
  • Legendary Magnaflow quality, power, and sound
  • Ceramic, honeycomb catalyst designed for maximum flow and surface area

When you want the best, you want Magnaflow!  These 49-State Legal semi-universal catalytic converters have a catalyst specifically designed for your vehicle – just cut out your old catalytic converter and weld in the new one.  Engineered to cut emissions and improve performance.

Magnaflow 49-State Semi-Universal Rear Catalytic Converter - Traditional Converter, Semi-Universal

Best Seller
$111.97 $144.90 You Save $32.93 (23%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Brand SKU#: Magnaflow 99004HM
  • Location: Rear
  • Series: Magnaflow 49-State Semi-Universal
  • Type: Traditional Converter
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Semi-Universal
  • Quantity Sold: Sold Individually
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Dimensions: 12 in. L x 6.5 in. W, 16 in. overall length
  • Warranty: Magnaflow 25,000 Mile Limited Warranty
See more

Fits the following 2003 Mitsubishi Eclipse Submodels

  • 4 Cyl 2.4L | RS, GS, Spyder GS
See more
Customer Review: (see review/s)
  • It was easy for the installer to install. Did not affect the Oxygen Sensor, and now I got super great mileage, from less than 20 mpg, I now get 26.5 mpg.

    posted by: Gil on March 15, 2010

Magnaflow California Legal Semi-Universal Catalytic Converter

  • 50-State/California Legal
  • Semi-universal design – cut out your old catalytic converter and weld in the new one
  • Stainless Steel Construction
  • Legendary Magnaflow quality, power, and sound
  • Ceramic, honeycomb catalyst designed for maximum flow and surface area

When you want the best, you want Magnaflow!  These semi-universal 50-State Legal catalytic converters have a catalyst specifically designed for your vehicle – just cut out your old catalytic converter and weld in the new one.  Engineered to cut emissions and improve performance.

Magnaflow 50-State Semi-Universal Rear, Passenger Side Catalytic Converter - Traditional Converter, Semi-Universal

Best Seller
$169.21 $218.98 You Save $49.77 (23%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Brand SKU#: Magnaflow 441304
  • Location: Rear, Passenger Side
  • Series: Magnaflow 50-State Semi-Universal
  • Type: Traditional Converter
  • Emissions: 50-State Legal
  • Product Fit: Semi-Universal
  • Quantity Sold: Sold Individually
  • Tube Material: Stainless Steel
  • E O Number: D-193-96
  • Anticipated Ship Out Time: 1-2 Business Days
  • Dimensions: 13 in. overall length
  • Notes: Inlet/Outlet Size : 2in. I.D.
  • Warranty: Magnaflow 5 year / 50,000 Mile Warranty
See more

Fits the following 2003 Mitsubishi Eclipse Submodels

  • 6 Cyl 3.0L | GT, Spyder GT, GTS, Spyder GTS
See more

Magnaflow 50-State Semi-Universal Front, Driver Or Passenger Side Catalytic Converter - Traditional Converter, Semi-Universal

Best Seller
$185.78 $240.43 You Save $54.65 (23%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Brand SKU#: Magnaflow 444104
  • Location: Front, Driver Or Passenger Side
  • Series: Magnaflow 50-State Semi-Universal
  • Type: Traditional Converter
  • Emissions: 50-State Legal
  • Product Fit: Semi-Universal
  • Quantity Sold: Sold Individually
  • Tube Material: Stainless Steel
  • E O Number: D-193-96
  • Anticipated Ship Out Time: 1-2 Business Days
  • Dimensions: 13 in. overall length
  • Notes: Inlet/Outlet Size : 2in. I.D.
  • Warranty: Magnaflow 5 year / 50,000 Mile Warranty
See more

Fits the following 2003 Mitsubishi Eclipse Submodels

  • 6 Cyl 3.0L | GT, Spyder GT, GTS, Spyder GTS
See more

Magnaflow 50-State Semi-Universal Rear, Passenger Side Catalytic Converter - Traditional Converter, Semi-Universal

$169.21 $218.98 You Save $49.77 (23%)
Add to Cart
Availability: In Stock
Only from APW Rewards
  • Brand SKU#: Magnaflow 441305
  • Location: Rear, Passenger Side
  • Series: Magnaflow 50-State Semi-Universal
  • Type: Traditional Converter
  • Emissions: 50-State Legal
  • Product Fit: Semi-Universal
  • Quantity Sold: Sold Individually
  • Tube Material: Stainless Steel
  • E O Number: D-193-96
  • Anticipated Ship Out Time: 1-2 Business Days
  • Dimensions: 13 in. overall length
  • Notes: Inlet/Outlet Size : 2.25in. I.D.
  • Warranty: Magnaflow 5 year / 50,000 Mile Warranty
See more

Fits the following 2003 Mitsubishi Eclipse Submodels

  • 6 Cyl 3.0L | GT, Spyder GT, GTS, Spyder GTS
See more

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