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Catalytic Converter for 2004 Honda Civic

We have 70 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

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$219.74 $259.29 You Save $39.55 (15%)
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  • Sku#: REPH960309
  • 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
  • Oxygen Sensor Ports: 2
  • Dimensions: 15.5 in. overall length
  • Inlet Type: Single (6-bolt welded flange)
  • Anticipated Ship Out Time: 1-2 Business Days
  • Warranty: 5-year or 50,000-mile limited warranty
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Fits the following 2004 Honda Civic Submodels

  • 4 Cyl 1.7L | GX, HX
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Evan Fischer Front Catalytic Converter - Manifold Converter, Direct Fit

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$278.28 $328.37 You Save $50.09 (15%)
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  • Sku#: REPH960310
  • 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
  • Oxygen Sensor Ports: 2
  • Outlet Type: Single (2-bolt fixed flange)
  • Dimensions: 19 in. overall length
  • Inlet Type: Single (5-bolt fixed flange)
  • Anticipated Ship Out Time: 1-2 Business Days
  • Warranty: 5-year or 50,000-mile limited warranty
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Fits the following 2004 Honda Civic Submodels

  • 4 Cyl 1.3L | Hybrid
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Evan Fischer Catalytic Converter - Traditional Converter, Direct Fit

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$211.65 $249.75 You Save $38.10 (15%)
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Availability: In Stock
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  • Sku#: REPH960314
  • Type: Traditional Converter
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Aluminized Steel
  • Oxygen Sensor Ports: 2
  • Outlet Type: Single (3-bolt welded flange)
  • Dimensions: 41 in. overall length
  • Inlet Type: Single (2-bolt welded flange)
  • Anticipated Ship Out Time: 1-2 Business Days
  • Warranty: 5-year or 50,000-mile limited warranty
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Fits the following 2004 Honda Civic Submodels

  • 4 Cyl 1.7L | DX, EX, GX, HX, LX, Si, Value Package
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Eastern 50-state legal Catalytic Converter

Eastern ECO CARB Catalytic Converter

 30 years of innovation is proof enough that Eastern is the best manufacturer of the finest aftermarket and original equipment catalytic converters on the market. Their ECO Series Catalytic Converters which are designed to help keep the Check Engine Light (MIL) off is another set of catalytic converters with world class quality.

 The Eastern ECO CARB Catalytic Converter is the best option for any vehicle that needs to comply with the California Air Resources Board (CARB) regulations. The Eastern ECO CARB Catalytic Converter features washcoats with greater loadings of precious metals to handle applications with ultra low emissions, higher than normal emissions, as well as vehicles with higher mileage and heavier workloads.

Here's why Eastern ECO CARB Catalytic Converter is the best option:

  •   Passed the emissions requirement of the California Air Resources Board
  •   Engineered with Eastern's proprietary NANO technology yielding highly efficient loadings for lower cost and better converter efficiency
  •   Features an advanced materials design for maximum engine output and performance
  •   Comes with a 5-year or 50,000-mile warranty

Eastern ECO CARB Front Catalytic Converter - Manifold Converter, Direct Fit

Best Seller
$404.01 $476.73 You Save $72.72 (15%)
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Availability: In Stock
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  • Sku#: EAST670001
  • Location: Front
  • Series: Eastern ECO CARB
  • Type: Manifold Converter
  • Emissions: 50-State Legal
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Aluminized Steel
  • E O Number: D-665-4
  • Anticipated Ship Out Time: 1-2 Business Days
  • Warranty: 5-year or 50,000-mile Eastern limited warranty
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Fits the following 2004 Honda Civic Submodels

  • 4 Cyl 1.7L | DX, EX, GX, HX, LX, Value Package
See more

49-state legal Eastern Direct Fit Catalytic Converter

Eastern 49-State Legal Direct Fit Catalytic Converters

  • NANO technology for better converter efficiency
  • Advanced materials design for optimum engine output and catalytic efficiency
  • Complete range of inlet and outlet diameters
Backed by 3 decades of product expertise, Eastern continues to invest in state-of-the-art production equipment to guarantee only the best for their customers - making them ready for the future.

Note:
  • 49-state legal; Not legal in California and other states adopting California Emissions Standards; Not for sale or use in California and other states adopting California Emissions Standards; Cannot be shipped to California and such states

Eastern ECO II Catalytic Converter - Traditional Converter, Direct Fit

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$247.64 $292.22 You Save $44.58 (15%)
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  • Sku#: EAST40399
  • 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
  • Dimensions: 41 in. overall length
  • Replaces OE Number: 18160PLRA00
  • Anticipated Ship Out Time: 1-2 Business Days
  • Warranty: 5-year or 50,000-mile Eastern limited warranty
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Fits the following 2004 Honda Civic Submodels

  • 4 Cyl 1.7L | DX, EX, GX, HX, LX, Si, Value Package
See more
Customer Review: (see review/s)
  • Perfect fit, plus it comes with the required gaskets

    posted by: civic 01 on September 2, 2009

Eastern ECO II Front Catalytic Converter - Manifold Converter, Direct Fit

Best Seller
$300.44 $354.52 You Save $54.08 (15%)
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Availability: In Stock
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  • Sku#: EAST40582
  • Location: Front
  • Series: Eastern ECO II
  • Type: Manifold Converter
  • Emissions: 48-State Legal (Cannot Ship to CA or NY)
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Tube Material: Aluminized Steel
  • Dimensions: 15.5 in. overall length
  • Anticipated Ship Out Time: 1-2 Business Days
  • Warranty: 5-year or 50,000-mile Eastern limited warranty
See more

Fits the following 2004 Honda Civic Submodels

  • 4 Cyl 1.7L | DX, EX, GX, HX, LX, Si, Value Package
See more
Customer Review: (see review/s)
  • This fit perfectly on my 2002 Civic DX. No problems with install. Looks just like the stock OEM manifold that it replaced. Came with all gaskets and heat shields. Great buy and great product thanks APW

    posted by: Mr. dela cruz on September 23, 2010

  • view all 7 reviews

Eastern ECO II Catalytic Converter - Traditional Converter, Direct Fit

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$255.34 $301.30 You Save $45.96 (15%)
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Availability: In Stock
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  • Sku#: EAST40608
  • 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
  • Warranty: 5-year or 50,000-mile Eastern limited warranty
See more

Fits the following 2004 Honda Civic Submodels

  • 4 Cyl 2.0L | Si
See more

Eastern 49-state legal Universal Catalytic Converter

Eastern 49-State Legal Universal Catalytic Converters

  • NANO technology for better converter efficiency
  • Advanced materials design for optimum engine output and catalytic efficiency
  • Complete range of inlet and outlet diameters
  • Non-directional for ease of installation
Backed by 3 decades of product expertise, Eastern continues to invest in state-of-the-art production equipment to guarantee only the best for their customers - making them ready for the future.

Note:
  • 49-state legal; Not legal in California and other states adopting California Emissions Standards; Not for sale or use in California and other states adopting California Emissions Standards; Cannot be shipped to California and such states

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

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$79.03 $93.26 You Save $14.23 (15%)
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Availability: In Stock
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  • Sku#: EAST82625
  • 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
  • Dimensions: 12 in. body length, 16 in. overall length
  • Anticipated Ship Out Time: 1-2 Business Days
  • Warranty: 5-year or 50,000-mile Eastern limited warranty
See more

Fits the following 2004 Honda Civic Submodels

  • 4 Cyl 1.7L | DX, EX, GX, HX, LX, Si, Value Package
See more

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

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$64.23 $75.79 You Save $11.56 (15%)
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Availability: In Stock
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  • Sku#: EAST82774
  • 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
  • Warranty: 5-year or 50,000-mile Eastern limited warranty
See more

Fits the following 2004 Honda Civic Submodels

  • 4 Cyl 1.3L | Hybrid
See more

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
$100.27 $129.77 You Save $29.50 (23%)
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Availability: In Stock
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  • Sku#: M6699204HM
  • 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
  • Dimensions: 9 in. L x 5.13 in. W, 13 in. overall length
  • Anticipated Ship Out Time: 1-2 Business Days
  • Warranty: Magnaflow 25,000 Mile Limited Warranty
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Fits the following 2004 Honda Civic Submodels

  • 4 Cyl 1.3L | Hybrid
See more
Customer Review: (see review/s)
  • Replaced entire exhaust and this item was part of it. Couple days for shipping arrived undamaged had everything welded and installed and sounds great. This is a fraction of the cost of a direct fit/bolt on converter so was pretty much a no-brainer.

    posted by: on May 18, 2014

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

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$113.92 $147.42 You Save $33.50 (23%)
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Availability: In Stock
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  • Sku#: M6699354HM
  • 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
  • Dimensions: 11 in. L x 5.13 in. W, 15 in. overall length
  • Anticipated Ship Out Time: 1-2 Business Days
  • Warranty: Magnaflow 25,000 Mile Limited Warranty
See more

Fits the following 2004 Honda Civic Submodels

  • 4 Cyl 1.7L | EX, GX
See more
Customer Review: (see review/s)
  • GIVES MY CAR A SOUND OF PURE POWERFUL PERFORMANCE. LOVE IT.

    posted by: PAT on May 19, 2012

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

Best Seller
$113.92 $147.42 You Save $33.50 (23%)
Add to Cart
Availability: In Stock
(more)
  • Sku#: M6699355HM
  • 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
  • Dimensions: 11 in. L x 5.13 in. W, 15 in. overall length
  • Anticipated Ship Out Time: 1-2 Business Days
  • Warranty: Magnaflow 25,000 Mile Limited Warranty
See more

Fits the following 2004 Honda Civic Submodels

  • 4 Cyl 2.0L | SiR, Si
See more

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