2004 Honda Civic Performance Exhaust Systems

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    • (0 reviews)
      Honda Civic DX / EX / LX 2004, American Thunder™ Stainless Steel Single Cat-Back Exhaust System by Flowmaster®, MODERATE SOUND. 60 Series Muffler. Single Rear Exit. 2.25" Tubing. 3.5" Polished Stainless Steel Tip. American...
      $602.10$481.68
      # 959687
    • (1 reviews)
      Honda Civic DX / EX / LX 2004, Street Series Stainless Steel Cat-Back Exhaust System by MagnaFlow®, MODERATE SOUND. Single Rear Exit. 2.25" Tubing. 7" x 14" Muffler. 4" x 14" Resonator. 4" Polished Stainless Tip. The Street Series...
      $683.21$546.57
      # 1678773
    • (0 reviews)
      Honda Civic EX Coupe 2004, MegaPower™ Exhaust System by Skunk2®. 2.36" Diameter. Bolt-on system. No welding or fabrication necessary. This MegaPower cat-back exhaust system delivers maximum performance and ultimate sound at an...
      Designed for maximum performanceGenerates more horsepower by optimizing engine airflow
      $619.99$495.99
      # 38815844
    • (0 reviews)
      Honda Civic 2004, Polished Stainless Steel Cat-Back Exhaust System by DC Sports®. Single Canister. DC Sports race-inspired Single Canister systems are available for V6 and select four-cylinder application. Our Single Canister...
      $621.71from $497.37 - $609.90
      # 11019186
    • (0 reviews)
      Honda Civic K20A3 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 system with...
      Designed to maximize exhaust flowProvide higher toque and increased horsepower
      $562.49$449.99
      # 38814737
    • (0 reviews)
      Honda Civic EX 2004, Ceramic Coated Stainless Steel Exhaust Header by DC Sports®. DC Sports header systems deliver incredible low-to mid-range power gains, while improving ground clearance and reducing weight by eliminating the...
      $408.86from $327.09 - $415.80
      # 11019331
    • (0 reviews)
      Honda Civic 1.7L 2004, Direct Fit California OBDII Catalytic Converter by MagnaFlow®. 2.5" Inlet / 2.5" Outlet Diameter. 10" Wide. If your car needs replacement, install one that will get you through the smog check and give you...
      $699.16$559.33
      # 22197273
    • (0 reviews)
      Honda Civic 1.7L 2004, Direct Fit Catalytic Converter by MagnaFlow®. 12.75" Wide. If your car needs replacement, install one that will get you through the smog check and give you more horsepower. This converter will directly...
      $654.70$523.76
      # 22197798
    • (0 reviews)
      Honda Civic Hybrid 2004, Direct Fit Federal Catalytic Converter by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check and give you more horsepower. This converter will directly replace...
      $389.41from $311.53 - $398.55
      # 22207239
    • (0 reviews)
      Honda Civic 2004, Direct Fit Federal Pre-OBDII Catalytic Converter by MagnaFlow®. Without Air Tube. If your car needs replacement, install one that will get you through the smog check and give you more horsepower. This converter...
      $397.34from $317.87 - $363.15
      # 49467823
    • (0 reviews)
      Honda Civic 2004, Direct Fit OEM Grade Catalytic Converter by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check and give you more horsepower. This converter will directly replace the...
      $459.08from $367.26 - $523.76
      # 42443084
    • (0 reviews)
      Honda Civic 1.3L 2004, Catalytic Converter by Bosal®. If you’re in need of a replacement catalytic converter, you can’t do better than Bosal. They’re a leading supplier to vehicle manufacturers and use advanced manufacturing...
      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
      $452.33$361.86
      # 36757549
    • (0 reviews)
      Honda Civic 2004, Direct Fit Undercar Catalytic Converter by Eastern Catalytic®. If you need to replace your failed or damaged catalytic converter, this product is the right choice. Designed specifically for your vehicle, this...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $245.06from $196.05 - $394.32
      # 17573338
    • (0 reviews)
      Honda Civic without Air Tube 2004, Universal Fit Undercar Catalytic Converter by Eastern Catalytic®. Whether your catalytic converter is damaged by road debris or failed due to an engine problem, you definitely need a new one, and...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $76.61from $61.29 - $65.51
      # 17578841
    • (0 reviews)
      Honda Civic 2004, 40 Series Delta Flow™ Aluminized Steel Muffler by Flowmaster®, AGGRESSIVE SOUND, 2" Offset Inlet / 2" Center Outlet, 4" Thick x 9.75" Wide x 13" Case Length x 19" Overall Length. The 2-chamber design of this...
      $118.05$94.44
      # 848361
    • (0 reviews)
      Honda Civic 2004, 50 Series Delta Flow™ Aluminized Steel Muffler by Flowmaster®, MODERATE SOUND, 2" Offset Inlet / 2" Center Outlet, 4" Thick x 9.75" Wide x 17" Case Length x 23" Overall Length. The 50 Series Delta Flow mufflers...
      $133.78$107.02
      # 848470
    • (0 reviews)
      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
      $197.49$157.99
      # 38815894
    • (0 reviews)
      Honda Civic EX Coupe 2004, Exhaust Manifold by Genuine®. Exhaust manifold gasket and exhaust flange gasket are serviced separately. Is your car noisier these days? Can you smell exhaust fumes in the cabin? Exhaust system repairs...
      $298.74$238.99
      # 44702026
    • (0 reviews)
      Honda Civic 2004, Exhaust Flange Gasket by Bosal®. Bosal has a vast selection of all necessary accessories and hardware to help you make the exhaust system installation or repair job quick and easy. Choose Bosal, and you'll get...
      Constructed for a hassle-free exhaust repairEnsures a precise fit
      $4.88from $3.90 - $15.18
      # 20565570
    • (0 reviews)
      Honda Civic 2004, Rubber Mounting by Bosal®. Bosal has a vast selection of all necessary accessories and hardware to help you make the exhaust system installation or repair job quick and easy. Choose Bosal, and you'll get...
      Constructed for a hassle-free exhaust repairEnsures a precise fit
      $3.03$2.42
      # 20564601
    • (0 reviews)
      Honda Civic EX / HX 2004, N1 Style Cat-Back Exhaust System (2.5" Inlet) by Spec-D®. Make whatever you drive run and sound like a high-performance machine with a Spec-D Exhaust System. The Spec-D system replaces your restrictive...
      Dramatically improved exhaust flow compared to restrictive stock systemImproved engine breathing enables increased power output for better performance
      $178.00$142.40
      # 12205965
    • (2 reviews)
      Honda Civic EX 2004, N1 Style Cat-Back Exhaust System with Burnt Tip (2.5" Inlet) by Spec-D®. Make whatever you drive run and sound like a high-performance machine with a Spec-D Exhaust System. The Spec-D system replaces your...
      Dramatically improved exhaust flow compared to restrictive stock systemImproved engine breathing enables increased power output for better performance
      $189.13$151.30
      # 12205978
    • (0 reviews)
      Honda Civic 2004, Exhaust Manifold with Integrated Catalytic Converter by Dorman®, 1 per Pack, 1 per Pack. More like a complete kit than a single part, many of the Exhaust Manifolds include gaskets and hardware for a complete...
      Includes heat-shield for protection of hoses, wiring, and other engine componentsCast iron or stainless tubular construction protects against warping and/or cracking
      $354.85from $283.88 - $363.24
      # 16499534
    • (0 reviews)
      Honda Civic 2004, Exhaust Manifold with Integrated Catalytic Converter by Walker®. This component is constructed for your vehicle’s specific emissions requirements and designed to meet EPA regulations. The part features the...
      Constructed to meet your vehicle’s specific emissions requirements49-State legal and 50-State legal catalytic converters are available
      $364.18from $291.34 - $323.46
      # 8745451
    • (0 reviews)
      Honda Civic EX 2004, Direct Fit Catalytic Converter by Walker®. This catalytic converter is constructed specially for your vehicle to directly replace the original equipment part and comes ready to install. The part is designed to...
      Designed to meet your vehicle’s specific emissions requirementsDirect fit replacement
      $324.29from $259.43 - $348.02
      # 35473308
    • (0 reviews)
      Honda Civic 2004, Universal Catalytic Converter by Walker®. This part features the correct load of precious metals to ensure the proper limitation of tailpipe emissions. It is designed to meet the EPA policy and emission reduction...
      Constructed to meet your vehicle’s specific emissions requirementsFeatures stainless steel body with aluminized steel pipe and heat shields
      $139.33from $111.46 - $154.64
      # 35473314
    • (0 reviews)
      Honda Civic 1.7L 2004, Catalytic Converter by Bosal®. If you’re in need of a replacement catalytic converter, you can’t do better than Bosal. They’re a leading supplier to vehicle manufacturers and use advanced manufacturing...
      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
      $258.23from $206.58 - $449.14
      # 20565624
    • (0 reviews)
      Honda Civic 2004, Catalytic Converter by DEC®. 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 waste your...
      $593.36from $474.69 - $797.84
      # 7642233
    • (0 reviews)
      Honda Civic 2004, Quiet-Flow Muffler by Walker®. Together with delivering OE-style sound, the Quiet-Flow Muffler features 100% structural stainless steel construction that resists rust three times longer than aluminized mufflers...
      Designed for OE equivalent sound and precision fitSpun-locked heads for a proper resistance to backfire
      $137.06$109.65
      # 18164997
    • (0 reviews)
      Honda Civic 2004, Resonator by Walker®. If you want exhaust piping that delivers precise OE-style fit, appearance, and reliability, this part is your number one choice. Every pipe is vehicle-specific and is manufactured using...
      Designed to directly replace the factory partMade with precision benders and fixture checked
      $79.01from $63.21 - $90.66
      # 8745457
    • (0 reviews)
      Honda Civic 2004, SoundFX Direct Fit Muffler by Walker®. This muffler is the right choice if you opt for quality acoustics and performance. Walker offers 100% aluminized steel SoundFX Mufflers with direct fit and universal fit...
      Designed to deliver ultimate performance and pleasing sound qualityOE-equivalent direct-fit design
      $96.83$77.46
      # 17723863
    • (0 reviews)
      Honda Civic 2004, Muffler by Bosal®. This muffler is constructed by one of the leading OE suppliers to provide OE-style performance and maintain a factory-like sound. The direct-fit configuration allows for easy, bolt-on...
      Designed to deliver ultimate performance and a quality OE-style soundAluminized steel construction for maximum durability
      $92.64from $74.11 - $90.75
      # 20565611
    • (0 reviews)
      Honda Civic DX / LX / Value Package 2004, Intermediate Pipe by Walker®. Finish - Aluminized, 73.625" Overall Length, 1 Inlets, Inlet Connection Type - 2 Bolt Welded Flange, 1 Outlets, 1.5" Outside Outlet Diameter, Outlet Connection...
      Designed to directly replace the factory partMade with precision benders and fixture checked
      $82.36$65.89
      # 18156708
    • (0 reviews)
      Honda Civic Gas 1.7L 2004, Exhaust Pipe by Bosal®. This pipe is engineered to meet OE specs to ensure precise, factory-like fit, performance, and reliability. This part features a direct fit design allowing for ease of...
      Stainless or aluminized steel construction for durabilityPrecision-manufactured for easy fitment
      $122.45$97.96
      # 20553061
    • (0 reviews)
      Honda Civic 2004, Exhaust Installation Kit by Bosal®. Bosal has a vast selection of all necessary accessories and hardware to help you make the exhaust system installation or repair job quick and easy. Choose Bosal, and you'll get...
      Constructed for a hassle-free exhaust repairEnsures a precise fit
      $11.06from $8.85 - $10.91
      # 20565659
    • (0 reviews)
      Honda Civic DX / EX / GX / HX / Hybrid / LX / Value Package 2004, Manifold Bolt by Bosal®. Bosal has a vast selection of all necessary accessories and hardware to help you make the exhaust system installation or repair job quick...
      Constructed for a hassle-free exhaust repairEnsures a precise fit
      $9.16$7.33
      # 20553923
    • (0 reviews)
      Honda Civic DX / EX / GX / HX / Hybrid / LX / Value Package 2004, Manifold Nut by Bosal®. Bosal has a vast selection of all necessary accessories and hardware to help you make the exhaust system installation or repair job quick and...
      Constructed for a hassle-free exhaust repairEnsures a precise fit
      $0.43$0.34
      # 20553752
    • (0 reviews)
      Honda Civic DX / EX / GX / HX / Hybrid / LX / Value Package 2004, Manifold Spring by Bosal®. Bosal has a vast selection of all necessary accessories and hardware to help you make the exhaust system installation or repair job quick...
      Constructed for a hassle-free exhaust repairEnsures a precise fit
      $5.15$4.12
      # 20552743
    • (0 reviews)
      Honda Civic 2004, Exhaust Gasket 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 waste your time...
      $36.91$29.53
      # 44728792
    • (0 reviews)
      Honda Civic 2004, Exhaust Manifold Gasket Set by Fel-Pro®. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global engineering resources, the...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      $10.66from $8.53 - $8.60
      # 19061587
    • (0 reviews)
      Honda Civic 2004, Exhaust Manifold Gasket by Beck Arnley®. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and transitioning to import vehicles in...
      OE quality products from top original equipmentTop quality materials
      $11.33from $9.06 - $11.34
      # 35833421
    • (0 reviews)
      Honda Civic 2004, Exhaust Manifold Gasket by AJUSA®. These gaskets seal components in the intake and exhaust systems of the vehicle such as the intake manifold, intake plenum, and exhaust manifold to the engine or other components....
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      $22.20from $17.76 - $18.60
      # 23009508
    • (0 reviews)
      Honda Civic 1.7L 2004, Exhaust Manifold Gasket by Victor Reinz®, Use 1 per Car. OEM Standard. Material: Multi-Layered Steel. When you’re low on oil, coolant or some other fluid, you may be tempted to just run down to the local...
      $11.80$9.44
      # 24041400
    • (0 reviews)
      Honda Civic 2004, Spring by Walker®. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the complete exhaust job. When you choose Walker...
      Makes installation quick and easyOptimal OE-style fit and quality
      $12.05$9.64
      # 46797415
    • (0 reviews)
      Honda Civic 1.3L 2004, Catalytic Converter Gasket by Victor Reinz®, Use 1 per Car. Rear. OEM Standard. Material: Steel. When you’re low on oil, coolant or some other fluid, you may be tempted to just run down to the local auto...
      $6.38$5.10
      # 24032605
    • (0 reviews)
      Honda Civic 2004, Gold Metal Exhaust Bolt and Spring by Dorman®, 1 Piece. Designed for an exact fit, Dorman’s Exhaust Bolt & Spring. Save time and energy by having the right hardware on hand when you need it.
      Rust and corrosion resistantDurable hardened and spring steel construction
      $8.08$6.46
      # 31620806
    • (0 reviews)
      Honda Civic 2004, Gasket by Walker®. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the complete exhaust job. When you choose Walker...
      Makes installation quick and easyOptimal OE-style fit and quality
      $4.46from $3.57 - $12.96
      # 18139285
    • (0 reviews)
      Honda Civic 2004, Insulator by Walker®. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the complete exhaust job. When you choose Walker...
      Makes installation quick and easyOptimal OE-style fit and quality
      $4.29from $3.43 - $6.02
      # 35473320
    • (0 reviews)
      Honda Civic DX / LX / Value Package 2004, U-Bolt Clamp by Walker®. Standard Clamp Type, Hex Nut Type, 1.5" Diameter, 1 Inlet, 1 Outlet. With their extensive selection of accessories and hardware for the exhaust system, Walker will...
      Makes installation quick and easyOptimal OE-style fit and quality
      $1.84$1.47
      # 18126041
    • (0 reviews)
      Honda Civic 1.7L 2004, Exhaust Pipe Flange Gasket by Fel-Pro®. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global engineering resources, the...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      $5.88from $4.70 - $9.84
      # 19068460
    • (0 reviews)
      Honda Civic 2004, Cat. Converter Gasket by Ishino®. 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 waste...
      $5.06$4.05
      # 8297416
    • (0 reviews)
      Honda Civic 2004, Exhaust Hanger by HJS®. Position: Rear. Note: At Rear Muffler. 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...
      $5.30$4.24
      # 7747979
    • (0 reviews)
      Honda Civic 2004, Exhaust Gasket by Ishino®. 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 waste your time...
      $20.68$16.54
      # 8297049
    • (0 reviews)
      Universal 10 Series Delta Force Single Chamber Race Muffler by Flowmaster®, AGGRESSIVE SOUND. The 10 Series Race mufflers are a compact lightweight single chamber design that will give a noticeable sound reduction compared to open...
      $94.53from $75.62 - $146.90
      # 898490
    • (0 reviews)
      Universal 30 Series Delta Force™ 3-Chamber Race Muffler by Flowmaster®, AGGRESSIVE SOUND. These are the most powerful and the quietest professional race mufflers available. 5.00” & 6.00” thick case sizes for maximum power and...
      $209.88from $167.90 - $267.60
      # 898450
    • (0 reviews)
      Universal 40 Series Delta Force™ 2-Chamber Race Muffler by Flowmaster®, AGGRESSIVE SOUND. The 40-Series mufflers offer a combination of maximum power and substantial dB-reduction compared to open headers. They are recommended for...
      $132.48from $105.98 - $230.86
      # 898479
    • (0 reviews)
      Universal 60 Series Delta Force Stainless Steel Race Muffler by Flowmaster®, MODERATE SOUND, 4" Offset Inlet / 4" Offset Outlet, 22" Length. These are the most powerful and the quietest professional race mufflers available.
      $246.58$197.26
      # 3146020
    • (1 reviews)
      Universal Outlaw™ Race Muffler by Flowmaster®, AGGRESSIVE SOUND. These mufflers are very small and lightweight. Attached directly to the collector they generally produce more power than open headers, while taking “the edge”...
      $111.25from $89.00 - $141.66
      # 898456
    • (1 reviews)
      Universal Pro Series™ Stainless Steel Race Muffler with Turn Down by Flowmaster®, MODERATE SOUND, 6" Diameter x 16" Case Length. Laminar Flow Mufflers have applications in all forms of racing. The Cool Shell Technology makes...
      $236.09$188.87
      # 898465
    • (0 reviews)
      Universal Scavenger Series Outlaw II Race Collector Muffler by Flowmaster®. These Delta Force Mufflers are designed to attach directly to the exhaust header primary tubes, replacing the collector in sprint and drag racing...
      $234.83from $187.86 - $208.84
      # 23297627



    Guides & Articles
    Regardless of whether you're shopping for a simple replacement muffler that delivers original equipment (OE) sound and performance or an upgraded muffler which provides a deeper growl with increased power through freer exhaust flow, you'll see choices between "direct fit" mufflers and "universal" mufflers. In this article, we'll help you understand the differences...
    It has been a battle of the ages to make exhaust sound like it should. Having less bends or turns will not only improve the sound but also performance. A custom exhaust is always an option for the race inspired and spirited weekend warriors. Our manufactures offer everything needed to build a custom exhaust to your preference.
    Headers are installed because the stock exhaust manifolds usually flow poorly. An exhaust header has individual tubes for each exhaust port, allowing each exhaust pulse to flow unobstructed from the cylinder head. The tubes on headers are usually larger in diameter than the runners on an exhaust manifold and the tubes are mandrel bent for gradual radius bends.
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    2004 Honda Civic Performance Exhaust Systems Reviews
    Average rating: 5 5 - 1 reviews
    (5)
    APPEARANCE
    EASE OF INSTALLATION
    PRICE/VALUE
    QUALITY
    Good Quality
    2004 Honda Civic | Posted by Kanwar | (Darien, IL)

    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.

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    2004 Honda Civic Models
    • 2004 Honda Civic DX Performance Exhaust Systems
    • 2004 Honda Civic EX Performance Exhaust Systems
    • 2004 Honda Civic GX Performance Exhaust Systems
    • 2004 Honda Civic HX Performance Exhaust Systems
    • 2004 Honda Civic Hybrid Performance Exhaust Systems
    • 2004 Honda Civic LX Performance Exhaust Systems
    • 2004 Honda Civic Value Package Performance Exhaust Systems