2004 Honda Civic Performance Exhaust Systems

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    • (7 reviews)
      # 1678773
      Honda Civic DX / EX / LX 2004, Street Series Stainless Steel Cat-Back Exhaust System with Tip by MagnaFlow®. Tip Material: Stainless. Muffler Sound: MODERATE. Exit Location: Single Straight Passenger Side Rear Exit. Exit Quantity:...
      Moderate SoundDelivers More Horsepower
      $546.57
    • (0 reviews)
      # 11019186
      Honda Civic 2004, Polished 304 SS Cat-Back Exhaust System by DC Sports®. Exhaust Type: Cat-Back. (Single Canister). DC Sports exhaust systems are CNC Mandrel bent from T304 stainless steel, hand welded, feature a straight-through...
      Individually tuned and dyno-tested for maximum performanceUses factory mounting locations for ease of installation and solid hangers for added durability
      $497.37 - $609.90
    • (2 reviews)
      # 78253211
      Honda Civic 2004, N1 Style 304 SS Cat-Back Exhaust System with Tip by Spec-D®. Exhaust Type: Cat-Back. Main Piping Diameter: 2.5". Exhaust Pipe Material: Stainless Steel. Series: N1 Style. Main Piping Diameter: 2.5". Make whatever...
      Made of high quality T-304 stainless steelMaximum performance which increases up to 15 horsepower
      $133.50 - $151.30
    • (0 reviews)
      # 80922987
      Honda Civic EX 2004, Silverline™ 304 SS Cat-Back Exhaust System by Ansa®. Offering a bold look and sound, Silverline™ Cat-Back Systems are available for select import and domestic sport compacts
      Provides maximum torque and powerMade of aircraft quality T304 stainless steel
      $431.52
    • (0 reviews)
      # 62612149
      Honda Civic EX Coupe 2004, N1 Mild Steel Cat Back Exhaust System by APEXi®. Tubing Diameter: 2.36". Exhaust Material: Stainless Steel. The N1 series muffler has become a staple of the import tuning industry. The N1 was the first of...
      Muffler is based on the "Original" WS (World Sport) Muffler Canister and TipIdeal for the daily driver car of an enthusiast
      $594.00
    • (0 reviews)
      # 132242838
      Honda Civic EX Coupe 2004, WS2 Mild Cat-Back Exhaust System by APEXi®. Tubing Diameter: 2.55". Exhaust Material: Stainless Steel. The WS Exhaust series is the A'PEX answer to the ultimate street muffler system with all around...
      Designed to boost your vehicle's performanceProvides excellent low and mid range power without excessive noise
      $762.45
    • (0 reviews)
      # 81935015
      Honda Civic EX 2004, N1 304 SS Cat-Back Exhaust System with 304 SS Tip by Invidia®. Piping Diameter: 2.36" (60 mm). Tip Outlet Diameter: 3.98" (101 mm). Material: Stainless Steel. For a good balance of price and performance,...
      Made to boost the performance of your vehicleExpertly crafted from premium materials
      $462.70
    • (0 reviews)
      # 85543201
      Honda Civic 2004, Pro Spec Exhaust by Buddy Club®. The Buddy Club Pro Spec Exhaust is a super light weight and highly efficient muffler that is made to perform for circuit runs. In its street version, to optimize torque in the low...
      $656.10
    • (0 reviews)
      # 85543202
      Honda Civic 2004, Stainless Steel Spec III Exhaust by Buddy Club®. Buddy Club SPEC III exhaust systems are the lightest stainless-steel exhaust system on the market today. Its simple straight thru design creates an increase of...
      $665.10
    • (0 reviews)
      # 38814737
      Honda Civic K20A3 Engine 2004, Alpha Series™ Stainless Steel Race Headers by Skunk2®. O2 Sensor Bung Thread Pitch: M18 X 15. Includes adapter pipe, gasket, and oxygen sensor adapter. Increase the performance of your exhaust...
      Designed to maximize exhaust flowProvide higher torque and increased horsepower
      $463.99
    • (0 reviews)
      # 11019333
      Honda Civic EX 2004, Ceramic Coated Stainless Steel 4-1 Exhaust Header by DC Sports®. 1 Pc. In 1987, American Honda commissioned DC Sports to develop a header for SCCA-prepped CRXs. What culminated was our first 4-into-1 header...
      Dyno tuned and tested against the competition for maximum performanceCAD-rendered, race-inspired 4-into-1 design emphasizes top-end power for road racing applications
      $327.09
    • (0 reviews)
      # 11019334
      Honda Civic EX 2004, Ceramic Coated Stainless Steel 4-2-1 Exhaust Header by DC Sports®. 2 Pcs. DC Sports 4-2-1 two-piece header systems delivers the same performace as our one-piece systems in a two piece design that eases...
      Dyno tuned and tested against the competition for maximum performanceCAD-rendered, design with threaded flanges for easy installation
      $415.81
    • (0 reviews)
      # 115477300
      Honda Civic D16W9 Engine / D17A1 Engine / D17A2 Engine / D17A6 Engine / D17A7 Engine 2004, T3 A/C Ram Horn Turbo Manifold by Blackworks Racing®. Blackworks Racing Turbo Manifolds are designed and manufactured in the USA! Made from...
      $599.00
    • (0 reviews)
      # 115477303
      Honda Civic D16W9 Engine / D17A1 Engine / D17A2 Engine / D17A6 Engine / D17A7 Engine 2004, T3 Ram Horn Turbo Manifold by Blackworks Racing®. Blackworks Racing Turbo Manifolds are designed and manufactured in the USA! Made from High...
      $499.00 - $599.00
    • (0 reviews)
      # 138850581
      Honda Civic 2004, California OBDII Catalytic Converter by MagnaFlow®. Catalytic Series: OBDII. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless. CARB Compliant: 50-State Legal. Converter...
      $319.97 - $381.39
    • (0 reviews)
      # 66580298
      Honda Civic 2004, Direct Fit California Catalytic Converter with Header by MagnaFlow®. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. CARB Compliant: Yes. Converter Configuration:...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $504.88 - $523.76
    • (0 reviews)
      # 138286848
      Honda Civic 2004, Direct Fit California OBDII Catalytic Converter by MagnaFlow®. Catalytic Series: OBDII. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. CARB Compliant: Yes. Converter...
      Increases exhaust flow compared to original factory converterIncreased exhaust flow allows your engine to make more power
      $559.33 - $566.94
    • (0 reviews)
      # 61588826
      Honda Civic 2004, Direct Fit Federal OEM Grade Catalytic Converter by MagnaFlow®. Catalytic Series: OEM Grade. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. CARB Compliant: No. Converter...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $367.26 - $494.35
    • (0 reviews)
      # 62247118
      Honda Civic 2004, Direct Fit Federal OEM Grade Catalytic Converter with Header by MagnaFlow®. Catalytic Series: OEM Grade. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. CARB Compliant:...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $455.34 - $523.76
    • (0 reviews)
      # 98136289
      Honda Civic 2004, Direct Fit Federal Standard Catalytic Converter by MagnaFlow®. Catalytic Series: Standard. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. CARB Compliant: No. Converter...
      Converter body manufactured from heavy-duty stainless steelIncreases exhaust flow compared to original factory converter
      $311.53 - $317.87
    • (0 reviews)
      # 98136291
      Honda Civic 2004, Direct Fit Federal Standard Catalytic Converter with Header by MagnaFlow®. Catalytic Series: Standard. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. CARB Compliant: No....
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $363.15 - $398.55
    • (0 reviews)
      # 49715858
      Honda Civic 2004, Federal Heavy Metal Catalytic Converter by MagnaFlow®. Catalytic Series: Heavy Metal. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless. CARB Compliant: 48-State Legal. Converter...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $100.27 - $113.92
    • (0 reviews)
      # 49715855
      Honda Civic 2004, Federal OEM Grade Catalytic Converter by MagnaFlow®. Catalytic Series: OEM Grade. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless. CARB Compliant: 48-State Legal. Converter...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $122.43 - $154.65
    • (0 reviews)
      # 136722307
      Honda Civic 2004, Direct Fit Catalytic Converter with Integrated Manifold by PaceSetter®. CARB Compliant: No. Converter Body Material: Stainless Steel. Converter Configuration: Direct Fit. PaceSetter Manifold Catalytic Converters...
      Manifold Catalytic Converters are a direct replacement for original equipmentManufactured using mandrel-bent stainless steel tubing for a low restriction tubular manifold design
      $246.50
    • (0 reviews)
      # 38815752
      Honda Civic GX 2004, MegaPower™ Muffler by Skunk2®. 5.25" Canister. 2.25" Inlet Diameter. Skunk2 muffler is designed to maximize exhaust flow and power. Each muffler by Skunk2 is constructed from T-304 stainless steel and TIG...
      Increases performance by maximizing power and flowConstructed from T-304 stainless steel
      $162.99
    • (0 reviews)
      # 80922986
      Honda Civic 2004, Silverline™ 304 SS Rear Muffler Assembly by Ansa®. It is engineered to improve your vehicle’s overall performance by generating more horsepower and torque. Made of extra durable materials, the product offers...
      Provides maximum torque and powerReduces exhaust gas temperatures and improves gas mileage
      $247.66
    • (0 reviews)
      # 78901213
      Honda Civic DX / EX / GX / HX / LX / Value Package 2004, Exhaust Manifold Flange by Vibrant Performance®. Thickness: 0.5". Do you want to get more power out of your vehicle? Then this superior Vibrant Performance product is just...
      Made of High Quality MaterialsAvailable in different sizes
      $49.88
    • (0 reviews)
      # 59305081
      Honda Civic D16W9 Engine / D17A1 Engine / D17A2 Engine / D17A6 Engine / D17A7 Engine 2004, Exhaust Head Flange by Blackworks Racing®. CNC machined 1/2" steel. Blackworks Racing now offers a full line of DIY performance parts to...
      $49.99
    • (0 reviews)
      # 89466968
      Honda Civic 1.6L 2004, Graph-Flex™ Exhaust Header Gaskets by Taylor Cable®. These durable header flange gaskets are composed of a graphite composition material on a malleable stainless steel core. They’ll seal up tight on...
      Malleable stainless steel metal coreGraphite composition sealing material for high heat applications
      $17.28
    • (0 reviews)
      # 89466967
      Honda Civic 1.6L 2004, Seal-4-Good™ Exhaust Header Gaskets by Taylor Cable®. Don’t put up with that ominous, unmistakable “tick, tick, tick” sound of an exhaust manifold leak. If it isn’t leaking air into the manifold and...
      Multi-layered for excellent conformability and sealSeals even imperfect flanges
      $33.74
    • (0 reviews)
      # 89466969
      Honda Civic 1.6L 2004, XX Carbon™ Exhaust Header Gaskets by Taylor Cable®. These durable header flange gaskets are composed of a graphite composition material on a malleable stainless steel core. They’ll seal up tight on almost...
      Malleable stainless steel metal coreGraphite composition sealing material for high heat applications
      $15.68
    • (0 reviews)
      # 115282539
      Honda Civic 2004, Replacement Exhaust Kit by Walker®. If you are looking for the ultimate in quality and value, then this superior replacement exhaust kit by Walker is what you need. All its components are designed with precision...
      Direct fit replacementIncludes all applicable flanges, hangers, and sensor fittings
      $59.24 - $259.24
    • (0 reviews)
      # 17723855
      Honda Civic 1.7L 2004, CalCat™ Front Stainless Steel Direct-Fit Round Manifold with Integrated Catalytic Converter by Walker®. Location: Front. Catalytic Series: CalCat™. Catalytic Converter Substrate Material: Ceramic. CARB...
      Constructed to meet your vehicle’s specific emissions requirementsDirect fit design
      $359.74
    • (0 reviews)
      # 87067178
      Honda Civic 2004, Ultra™ Stainless Steel Direct-Fit Round Manifold with Integrated Catalytic Converter by Walker®. Catalytic Series: Ultra™. Catalytic Converter Substrate Material: Ceramic. CARB Compliant: No. Converter...
      EPA & CARB Emissions Products Available for Most Vehicles5 Year / 50,000 Miles Warranty on Structural Components
      $259.24 - $335.46
    • (0 reviews)
      # 78560415
      Honda Civic 1.7L Engine Family: 4HNXV01.73A6 2004, Front Manifold with Integrated Catalytic Converter by Eastern®. Converter Configuration: Direct Fit. Catalytic Converter Format: Main Catalytic Converter. CARB Compliant: Yes. If...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $350.07
    • (0 reviews)
      # 73906298
      Honda Civic Hybrid Engine Family: 4HNXV01.35A6 2004, ECO CARB Front Manifold with Integrated Catalytic Converter by Eastern®. Catalytic Series: ECO CARB. Converter Configuration: Direct Fit. Catalytic Converter Format: Main...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $477.89
    • (0 reviews)
      # 17573334
      Honda Civic 1.7L 2004, ECO II Front Manifold with Integrated Catalytic Converter by Eastern®. Catalytic Series: ECO II. Converter Configuration: Direct Fit. Catalytic Converter Format: Main Catalytic Converter. Catalytic Converter...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $282.23
    • (0 reviews)
      # 17721270
      Honda Civic Hybrid 2004, ECO III Front Manifold with Integrated Catalytic Converter by Eastern®. Catalytic Series: ECO III. Converter Configuration: Direct Fit. Catalytic Converter Format: Main Catalytic Converter. Catalytic...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $318.09
    • (0 reviews)
      # 16499534
      Honda Civic 2004, Exhaust Manifold with Integrated Catalytic Converter by Dorman®. Finish: Natural. With Installation Hardware. More like a complete kit than a single part, many of the Exhaust Manifolds include gaskets and hardware...
      Includes heat-shield for protection of hoses, wiring, and other engine componentsCast iron or stainless tubular construction protects against warping and/or cracking
      $261.35 - $632.89
    • (0 reviews)
      # 20565477
      Honda Civic DX / LX with ULEV Specification 2004, Manifold with Integrated California Catalytic Converter by Bosal®. Converter Configuration: Direct Fit. CARB Compliant: Yes. Includes: Two O2 Sensor Ports. If you’re in need of a...
      Constructed to meet your vehicle’s specific emissions requirementsRadial flow concept allows for an even distribution of the gas flow in the converter for the optimal conversion of harmful gases
      $422.91
    • (0 reviews)
      # 20565556
      Honda Civic 2004, Manifold with Integrated Federal Catalytic Converter by Bosal®. Converter Configuration: Direct Fit. CARB Compliant: No. Includes: Two O2 Sensor Ports. If you’re in need of a replacement catalytic converter, you...
      Constructed to meet your vehicle’s specific emissions requirementsRadial flow concept allows for an even distribution of the gas flow in the converter for the optimal conversion of harmful gases
      $263.76 - $343.46
    • (0 reviews)
      # 44702026
      Honda Civic EX Coupe 2004, Exhaust Manifold by Genuine®. Is your car noisier these days? Can you smell exhaust fumes in the cabin? Exhaust system repairs should not be put off, both for safety and legal reasons, but before you...
      $230.70
    • (0 reviews)
      # 81060146
      Honda Civic 2004, Exhaust Manifold with Integrated Catalytic Converter by DEC®. Converter Configuration: Direct Fit. Pick out a catalytic converter by DEC and get your emissions back into check without worrying to fail again. These...
      Direct fitMade from a heavy duty stainless steel outer shell
      $348.60 - $498.40
    • (0 reviews)
      # 17739972
      Honda Civic EX 2004, CalCat™ Stainless Steel Direct-Fit Round Catalytic Converter by Walker®. Catalytic Series: CalCat™. Catalytic Converter Substrate Material: Ceramic. CARB Compliant: Yes. Converter Configuration: Direct-Fit....
      Designed to meet your vehicle’s specific emissions requirementsDirect fit replacement
      $365.82
    • (1 reviews)
      # 88066203
      Honda Civic 1.7L 2004, CalCat™ Stainless Steel Universal Fit Round Catalytic Converter without Air Tube by Walker®. Includes: Warranty Card. Catalytic Series: CalCat™. Catalytic Converter Substrate Material: Ceramic. CARB...
      Constructed to meet your vehicle’s specific emissions requirementsFeatures stainless steel body with aluminized steel pipe and heat shields
      $164.14
    • (0 reviews)
      # 17739973
      Honda Civic EX 2004, Ultra™ Stainless Steel Direct-Fit Round Catalytic Converter by Walker®. Catalytic Series: Ultra™. Catalytic Converter Substrate Material: Ceramic. CARB Compliant: No. Converter Configuration: Direct-Fit....
      Emission Warranty: 5 Years / 50,000 Miles (80,000 Kilometers)Structural Warranty: 5 Years / 50,000 Miles (80,000 Kilometers)
      $230.85
    • (0 reviews)
      # 138544005
      Honda Civic 2004, Ultra™ Stainless Steel Universal Fit Round Catalytic Converter without Air Tube by Walker®. Catalytic Series: Ultra™. Catalytic Converter Substrate Material: Ceramic. CARB Compliant: No. Converter...
      Constructed to meet your vehicle’s specific emissions requirementsFeatures stainless steel body with aluminized steel pipe and heat shields
      $103.17
    • (0 reviews)
      # 104604193
      Honda Civic 2.0L 2004, Universal Fit Catalytic Converter by Walker®. CARB Compliant: Yes. Converter Configuration: Universal Fit. Specifically designed to comply with the California Air Resources Board (CARB) Regulations. Universal...
      Constructed to meet your vehicle’s specific emissions requirementsFeatures stainless steel body with aluminized steel pipe and heat shields
      $145.24
    • (0 reviews)
      # 95031444
      Honda Civic 2004, Federal Catalytic Converter by Bosal®. Converter Configuration: Direct Fit. CARB Compliant: No. If you’re in need of a replacement catalytic converter, you can’t do better than Bosal. They’re a leading...
      Constructed to meet your vehicle’s specific emissions requirementsRadial flow concept allows for an even distribution of the gas flow in the converter for the optimal conversion of harmful gases
      $156.24 - $207.83
    • (0 reviews)
      # 88879674
      Honda Civic Gas 1.7L 2004, Standard Load Federal Catalytic Converter by Bosal®. Converter Configuration: Direct Fit. Catalytic Series: Standard Load. CARB Compliant: No. Catalytic Converter Overall Length: 11". Includes: Center O2...
      Constructed to meet your vehicle’s specific emissions requirementsRadial flow concept allows for an even distribution of the gas flow in the converter for the optimal conversion of harmful gases
      $112.35
    • (0 reviews)
      # 88868492
      Honda Civic 1.7L 2004, ECO CARB Catalytic Converter by Eastern®. Catalytic Series: ECO CARB. Converter Configuration: Direct Fit. Catalytic Converter Format: Main Catalytic Converter. Catalytic Converter Oxygen Sensor Location:...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $297.14 - $374.27
    • (0 reviews)
      # 100278165
      Honda Civic 1.7L VTEC Engine Engine Family: 4HNXV01.73A6 2004, ECO CARB Rear Catalytic Converter by Eastern®. Catalytic Series: ECO CARB. Converter Configuration: Direct Fit. Catalytic Converter Format: Main Catalytic Converter....
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $93.73
    • (0 reviews)
      # 111781034
      Honda Civic 2004, ECO II Catalytic Converter by Eastern®. Catalytic Series: ECO II. Converter Configuration: Direct Fit. Catalytic Converter Format: Main Catalytic Converter. Catalytic Converter Oxygen Sensor Location: Rear. CARB...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $196.06 - $224.02
    • (0 reviews)
      # 100289906
      Honda Civic 2004, ECO II Catalytic Converter by Eastern®. Catalytic Series: ECO II. Converter Configuration: Universal Fit. Catalytic Converter Format: Main Catalytic Converter. CARB Compliant: No. Catalytic Converter Body Length:...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $66.01 - $69.40
    • (0 reviews)
      # 86070308
      Honda Civic 2004, Catalytic Converter by DEC®. Converter Configuration: Direct Fit. Pick out a catalytic converter by DEC and get your emissions back into check without worrying to fail again. These catalytic converters are made...
      Direct fitMade from a heavy duty stainless steel outer shell
      $259.00 - $460.60
    • (0 reviews)
      # 81398070
      Honda Civic EX 2004, 608 Series Catalytic Converter by AP Exhaust®. Catalytic Series: 608 Series. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. Catalytic Converter Overall Length: 14"....
      Manufactured from high quality materialsDesign meet needs of OBDII equipped vehicles
      $89.76 - $96.70
    • (0 reviews)
      # 80140986
      Honda Civic 2004, Catalytic Converter by AP Exhaust®. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. Converter Configuration: Direct Fit. Inlet Type One: 2 Bolt Welded Flange. Outlet Type...
      Manufactured from high quality materialsDesign meet needs of OBDII equipped vehicles
      $232.98 - $250.63
    • (0 reviews)
      # 83038496
      Honda Civic 2004, Direct Fit Catalytic Converter by Davico®. CARB Compliant: No. Converter Configuration: Direct Fit. This direct-fit catalytic converter by Davico will be a great solution to replace your failed or damaged...
      Helps your vehicle emit harmless gasesDirect OEM replacement
      $187.45 - $375.53
    • (0 reviews)
      # 18164997
      Honda Civic 2004, Quiet-Flow™ Aluminized Steel Oval Muffler Assembly by Walker®. Muffler Series: Quiet-Flow™. Muffler Body Height: 7". Muffler Body Width: 9". Muffler Body Length: 15". Muffler Overall Length: 39.25". Muffler...
      Designed for OE equivalent sound and precision fitSpun-locked heads for a proper resistance to backfire
      $105.32
    • (0 reviews)
      # 8745457
      Honda Civic 2004, Stainless Steel Aluminized Round Resonator Assembly by Walker®. Muffler Body Height: 5". Muffler Body Width: 5". Muffler Body Finish: Aluminized. Muffler Body Shape: Round. Material: Stainless Steel. Inlet...
      Designed to directly replace the factory partMade with precision benders and fixture checked
      $62.26 - $87.06




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    2004 Honda Civic Performance Exhaust Systems Reviews

    Average rating:  5  5 - 1 review
    5 of 5
    Good Quality
    I have a 2004 Civic, and the exhaust on it looks great. I expected the sound to be a little more louder, but it is still great for showing off. One problem that I came with is that the exhaust tip touches the back of the back r34 bumper I bought from here. But that's not too big problem, because u can go to a body repair shop and cut the bumper to the right height. If u have a stock bumper, then it should be fine. Everything else works great. You can feel more airflow and power.
    KPosted by Kanwar (Darien, IL) /
    2004 Honda Civic
    Was this review helpful for you? Yes
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