2004 Subaru WRX Exhaust Parts

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    • (0 reviews)
      # mpn469959706
      Subaru WRX / WRX STI 2004, Stainless Steel Polished Up Pipe by HKS®. Material: Stainless Steel. Main Piping Diameter: 1.77". This product is made from materials of the highest possible quality to ensure exceptional durability to...
      Provides the passageway for exhaust gas which originates at the cylinder head and exits at the tail pipeMade from premium quality materials
      $168.50
    • (0 reviews)
      # 381435588
      Subaru WRX / WRX STI 2004, Street Series™ Stainless Steel Cat-Back Exhaust System by MagnaFlow®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. System Sound: Moderate. The Street Series is designed for...
      Moderate SoundDelivers More Horsepower
      $641.28 - $641.32
    • (0 reviews)
      # 86041468
      Subaru WRX STI 2.5L 2004, S-Type™ Stainless Steel Cat-Back Exhaust System by Borla®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 3". System Sound: Aggressive. When you want the best...
      Aggressive Plus SoundIncreased exhaust flow for better performance
      $689.99
    • (0 reviews)
      # 50386767
      Subaru WRX 2004, Touring™ Stainless Steel Cat-Back Exhaust System by Borla®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 3". System Sound: Mild Tone. When you want the best performing,...
      Increases horsepower and torqueIncreased Exhaust Flow for Better Performance
      $709.99
    • (0 reviews)
      # mpn1979424
      Subaru WRX 2004, N-II™ 304 SS Cat-Back Exhaust System by ARK Performance®. Exhaust Type: Cat-Back. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 3". The ARK N-II cat-back exhaust system offers straight-through...
      All Bolt-on SystemStraight-through Muffler Core
      $1,112.65
    • (0 reviews)
      # mpn2321857
      Subaru WRX / WRX STI 2004, Single Canister™ 304 SS Cat-Back Exhaust System by DC Sports®. Exhaust Type: Cat-Back. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 3". DC Sports exhaust systems are CNC Mandrel bent from T304...
      Individually tuned and dyno-tested for maximum performanceUses factory mounting locations for ease of installation and solid hangers for added durability
      $517.27
    • (0 reviews)
      # mpn2564309
      Subaru WRX STI 2004, Cat-Back Exhaust System by Agency Power®. Exhaust Type: Cat-Back. The Cat-Back is designed for customers seeking increased performance and better economy, combined with a powerful and well tuned exhaust note,...
      Suitable for Everyday DrivingIncreases Power
      $800.00
    • (0 reviews)
      # 381435615
      Subaru WRX 2004, N1 Style™ 304 SS Cat-Back Exhaust System by Spec-D®. Exhaust Type: Cat-Back. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 3". Make whatever you drive run and sound like a high-performance machine with a...
      Made of high quality T-304 stainless steelMaximum performance which increases up to 15 horsepower
      $154.33 - $163.40
    • (0 reviews)
      # mpn470412087
      Subaru WRX Wagon 2004, N1 Evo-R™ 304 SS Single Cat-Back Exhaust System by APEXi®. Exhaust Type: Cat-Back. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 3". System Sound: Deep Tone. The N1 series muffler has become a...
      Ideal for the daily driver car of an enthusiastMade from high-quality materials
      $564.68
    • (0 reviews)
      # 93989272
      Subaru WRX 2004, NOIR™ Mild Steel Cat-Back Exhaust System by APEXi®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Mild Steel. Main Tubing Diameter: 3". The NOIR Muffler was developed specifically with the diehard street car...
      Muffler is based on the "Original" WS (World Sport) Muffler Canister and TipFinished with an ALL Matte-Black Color Powdercoat from Piping - to - Tip
      $610.88
    • (0 reviews)
      # 132243424
      Subaru WRX 2004, WS2 Mild Steel Single Cat-Back Exhaust System by APEXi®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Mild Steel. Main Tubing Diameter: 2.5". The WS Exhaust series is the A'PEX answer to the ultimate street...
      Designed to boost your vehicle's performanceProvides excellent low and mid range power without excessive noise
      $650.01
    • (0 reviews)
      # 62402478
      Subaru WRX 2004, Stainless Steel Cat-Back Exhaust System by AVO®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 3". This AVO product is just the option for you in case you want to get the...
      Designed to boost your vehicle's performanceMade from high-quality materials
      $818.00
    • (0 reviews)
      # 95333325
      Subaru WRX 2004, G200™ Stainless Steel Cat-Back Exhaust System by Invidia®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 3". If performance is what you are seeking, the Invidia G200...
      Features a super-strength titanium tipMade to boost the performance of your vehicle
      $679.70
    • (0 reviews)
      # 81935442
      Subaru WRX 2004, N1™ Stainless Steel Cat-Back Exhaust System by Invidia®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 3". For a good balance of price and performance, Invidia offers the...
      Made to boost the performance of your vehicleExpertly crafted from premium materials
      $617.40
    • (0 reviews)
      # 81935445
      Subaru WRX 2004, N1™ Stainless Steel Racing Cat-Back Exhaust System by Invidia®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 3". For a good balance of price and performance, Invidia...
      Made to boost the performance of your vehicleExpertly crafted from premium materials
      $540.40
    • (0 reviews)
      # 95333327
      Subaru WRX 2004, Q300™ Stainless Steel Cat-Back Exhaust System by Invidia®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 3". The flat bottom shaped muffler design results in improved...
      SUS304 polished stainless steel pipingMandrel bent to shape
      $648.20
    • (0 reviews)
      # 84938467
      Subaru WRX 2004, 304 SS Cat-Back Exhaust System by PERRIN Performance®. Exhaust Type: Cat-Back. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 3". PERRIN Performance mufflers have a true 3" internal diameter for...
      Straight-through muffler for uninterrupted exhaust flow4" slash cut exhaust tip adds an aggressive look
      $607.50
    • (0 reviews)
      # mpn458196762
      Subaru WRX / WRX STI Sedan 2004, Medalion Touring™ Stainless Steel Cat-Back Exhaust System by Tanabe®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 3.15". The elegant, well defined...
      Designed to boost your vehicle’s performanceEngineered to excel in quality and durability
      $693.50
    • (0 reviews)
      # mpn469959454
      Subaru WRX / WRX STI 2004, Carbon-Ti Series™ 304 SS Cat-Back Exhaust System by HKS®. Exhaust Type: Cat-Back. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 3". Professionally developed with a racer in mind, this HKS...
      Upgrades both the horsepower and sound of your vehicleMade from premium quality materials
      $723.72
    • (0 reviews)
      # mpn469959449
      Subaru WRX / WRX STI 2004, Hi-Power Series™ 304 SS Cat-Back Exhaust System by HKS®. Exhaust Type: Cat-Back. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 3". Professionally developed with a racer in mind, this HKS...
      Upgrades both the horsepower and sound of your vehicleMade from premium quality materials
      $462.54
    • (0 reviews)
      # 70195854
      Subaru WRX 2004, Legamax Series™ 304 SS Exhaust System by HKS®. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 3". Professionally developed with a racer in mind, this HKS exhaust system provides an easy opportunity to...
      Upgrades both the horsepower and sound of your vehicleMade from premium quality materials
      $610.83
    • (0 reviews)
      # 97200612
      Subaru WRX 2004, Sport Series™ 409 SS Exhaust System by HKS®. Exhaust Tubing Material: 409 SS. Main Tubing Diameter: 3". Professionally developed with a racer in mind, this HKS exhaust system provides an easy opportunity to...
      Upgrades both the horsepower and sound of your vehicleMade from premium quality materials
      $497.09
    • (0 reviews)
      # mpn469959430
      Subaru WRX with GDB Chassis 2004, Super Turbo Series™ 304 SS Exhaust System by HKS®. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 3". Professionally developed with a racer in mind, this HKS exhaust system provides an...
      Effective on stock to high performance vehicles w/ upgraded turbines.The performance exhaust sound meets the JASMA standard
      $909.92
    • (0 reviews)
      # mpn470567115
      Subaru WRX 2004, Pro Spec™ Stainless Steel Cat-Back Exhaust System by Buddy Club®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 3". Based off the same racing proven technologies as the...
      Designed to help your auto operate at its peakMade to provide improved exhaust flow
      $700.00
    • (0 reviews)
      # mpn470567161
      Subaru WRX 2004, Spec III™ Stainless Steel Cat-Back Exhaust System by Buddy Club®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 2.91". Buddyclub Spec III true RACING SPEC MUFFLER is a...
      Designed to help your auto operate at its peakMade to provide improved exhaust flow
      $665.10
    • (0 reviews)
      # mpn470412097
      Subaru WRX / WRX STI 2004, Rubber Muffler Hangers by APEXi®. Includes: 2 pieces. A'PEXi muffler hangers are constructed of an Ethylene Propylene Rubber (EPM) material which is resilient against heat, aging, and wear and tear. The...
      Ideal for the daily driver car of an enthusiastMade from high-quality materials
      $18.18
    • (0 reviews)
      # mpn458193544
      Subaru WRX / WRX STI 2004, Exhaust Mount by Torque Solution®. Torque Solution® exhaust mounts will reduce exhaust movement and vibrations both under extreme racing conditions and daily street driving. Great compliment to any...
      Eliminates Exhaust MovementMade from High Grade Polyurethane
      $39.84
    • (0 reviews)
      # mpn461609134
      Subaru WRX STI 2.5L 2004, Downpipe Thermal Blanket by PERRIN Performance®. PERRIN Thermal Blankets will improve response while lowering under hood temperatures. Thermal losses from headers, uppipes, turbine housings, and downpipes,...
      Improves power while lowering under hood temperaturesEnsures a precise fit to protect under hood components from heat
      $185.40
    • (0 reviews)
      # 427377499
      Subaru WRX STI 2004, Exhaust Hanger by Kartboy®. 15mm is diameter of the center holes. Material: Polyurethane. Black polyurethane exhaust hanger from Kartboy provides an easy way to stop your exhaust system from moving and bumping....
      Designed to help you get the maximum out of your ridePerfect solution for hardcore racers and rookies alike
      $8.00 - $9.00
    • (0 reviews)
      # 84938480
      Subaru WRX 2004, 15mm Polyurethane Exhaust Hanger by PERRIN Performance®. When new, OEM rubber exhaust hangers are fine for the stock exhaust system. But they simply don't hold up or perform well in performance applications. Over...
      Help keep your exhaust system securely placedMade from polyurethane that is resistant to high and low temperatures
      $11.03
    • (0 reviews)
      # mpn458181552
      Subaru WRX / WRX STI 2004, MLS Exhaust Header Gasket by Cometic Gasket®.
      Made of High Quality MaterialsBuilt to Last
      $33.03
    • (0 reviews)
      # 116543160
      Subaru WRX 2004, Exhaust Manifold Gasket Set by Magnum Gasket®. You'd better be ready to take the heat if you're going to seal an exhaust manifold, where temperatures can often exceed 1,000°F. You can count on Magnum to offer the...
      Made of High Quality MaterialsThe best combination of steel layers and high-temp gasket materials
      $9.14
    • (0 reviews)
      # mpn4028407962
      Subaru WRX 2004, Brospeed Catalytic Converter Delete Pipe by Bosal®. This product is engineered to meet OE specs to ensure precise, factory-like fit, maximum performance, and reliability. This part features a direct fit design...
      Made of High Quality materialsPrecision-manufactured for easy fitment
      $100.15
    • (0 reviews)
      # mpn457857302
      Subaru WRX STI 2.5L 2004, Stainless Steel Up Pipe by Invidia®. Material: Stainless Steel. Main Piping Diameter: 1.97" (50 mm). Do you want to get more power out of your vehicle? Then this superior Invidia product is just for you....
      Made to boost the performance of your vehicleExpertly crafted from premium materials
      $156.10
    • (0 reviews)
      # mpn4208835074
      Subaru WRX GD Body Code 2004, Revolution RS™ 304 SS Cat-Back Exhaust System by GReddy®. Exhaust Type: Cat-Back. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 3". GReddy Revolution RS line named for the revolutionary...
      Aggressive street-styled exhaust systemFull polished Stainless-steel cat-back
      $589.00
    • (0 reviews)
      # mpn1724473440
      Subaru WRX / WRX STI 2004, Full Titanium Racing Cat-Back Exhaust System by Invidia®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Full Titanium. Main Tubing Diameter: 3.15". Bended forming, Piping Inside and outside smooth with...
      Casting Flanges beta 6/4 Titanium AlloyAwesome strength
      $1,330.00
    • (0 reviews)
      # 488691870
      Subaru WRX 2004, Crossover Gasket by Cometic Gasket®.
      $4.32 - $9.38
    • (0 reviews)
      # mpn4441242935
      Subaru WRX 2004, Exhaust Pipe Gasket by Cometic Gasket®. Quantity: 2 Pieces.
      $8.89
    • (0 reviews)
      # 286167897
      Universal Ultra™ Catalytic Converter by Walker®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Large Oval. With 1 Inlet. Without Air Tube. With O2 Sensor Port. Catalytic...
      High precious metal load and high technology washcoat for premium performanceStainless steel body and aluminized body and pipe heat shields for durability
      $103.26 - $109.22
    • (0 reviews)
      # 286167923
      Universal Catalytic Converter by Walker®. Emissions: EPA compliant. Converter Configuration: Universal Fit. With 1 Inlet. This part features the correct load of precious metals to ensure the proper limitation of tailpipe emissions....
      Constructed to meet your vehicle’s specific emissions requirementsFeatures stainless steel body with aluminized steel pipe and heat shields
      $57.49 - $116.82
    • (1 review)
      # 286167639
      Universal Bullet Cat™ ECO II Catalytic Converter by Eastern®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without O2 Sensor Ports. Whether your catalytic converter is...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $60.47 - $73.90
    • (1 review)
      # 286167645
      Universal Bullet Cat™ ECO III Catalytic Converter by Eastern®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without O2 Sensor Ports. Whether your catalytic converter is...
      Direct OEM replacementDesigned with twice the amount of Rhodium to help keep the MIL off on vehicles with high mileage, low emissions, or higher than normal emissions
      $74.99 - $91.65
    • (0 reviews)
      # 286167631
      Universal ECO GM Catalytic Converter by Eastern®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Large Round. Catalytic Converter Overall Length: 16". Keep your exhaust emissions...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $76.65 - $81.04
    • (0 reviews)
      # mpn1233537
      Universal ECO III Stuffed Tube Catalytic Converter with EndCap by Eastern®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without O2 Sensor Ports. Catalytic Inlet Diameter:...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $73.95
    • (0 reviews)
      # 286167831
      Universal QuieCat™ ECO II Resonated Catalytic Converter by Eastern®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Catalytic Converter Overall Length: 18". The new Eastern...
      Baffled tube reduces sound levels by 35% without losing horsepowerHigh flow design retains maximum engine output and maximizes catalytic efficiency
      $77.82 - $80.84
    • (0 reviews)
      # 286167832
      Universal QuieCat™ ECO III Resonated Catalytic Converter by Eastern®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Catalytic Converter Overall Length: 18". The new...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $96.49 - $100.25
    • (0 reviews)
      # 286167833
      Universal QuieCat™ Standard Resonated Catalytic Converter by Eastern®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without O2 Sensor Ports. The new Eastern Catalytic...
      Baffled tube reduces sound levels by 35% without losing horsepowerHigh flow design retains maximum engine output and maximizes catalytic efficiency
      $52.13 - $54.90
    • (0 reviews)
      # 286167853
      Universal Standard Stuffed Tube Catalytic Converter with EndCap by Eastern®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without O2 Sensor Ports. Whether your catalytic...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $41.99 - $42.82
    • (0 reviews)
      # 286167714
      Universal Catalytic Converter by Eastern®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Large Oval. Keep your exhaust emissions within specifications and your vehicle running in...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $64.76 - $138.89
    • (0 reviews)
      # 286167741
      Universal Catalytic Converter by Eastern®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Large Round. With 1 O2 Sensor Port. Catalytic Converter Overall Length: 16". Keep your...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $63.42 - $82.22
    • (0 reviews)
      # 286167775
      Universal Catalytic Converter by Eastern®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Keep your exhaust emissions within specifications and your vehicle running in top...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $38.48 - $98.73
    • (0 reviews)
      # 286167836
      Universal Catalytic Converter by Eastern®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Keep your exhaust emissions within specifications and your vehicle running in top...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $35.97 - $82.22
    • (0 reviews)
      # 350072412
      Universal Catalytic Converter by Eastern®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Contains approximately 40% higher precious metal content than most other...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $176.32 - $200.72
    • (0 reviews)
      # 504578921
      Universal 608 Series Catalytic Converter by AP Exhaust®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Without Air Tube. Three-Way No / Air OBDII By Design US-EPA Compliant catalytic converters are efficient at...
      A multitude of Universal converter bodies provided for maximum coverageProvides professional installer with immediate installation options
      $63.09 - $169.43
    • (0 reviews)
      # 504706719
      Universal Enhanced Standard Duty Catalytic Converter by AP Exhaust®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without O2 Sensor Port. Three-Way No / Air OBDII By Design...
      A multitude of Universal converter bodies provided for maximum coverageProvides professional installer with immediate installation options
      $49.54 - $102.90
    • (0 reviews)
      # mpn474117414
      Universal Heavy Duty Catalytic Converter by AP Exhaust®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. With Single Air Tube. With O2 Sensor Port. Catalytic Converter Overall...
      A multitude of Universal converter bodies provided for maximum coverageProvides professional installer with immediate installation options
      $146.63
    • (0 reviews)
      # 504629737
      Universal High Flow Catalytic Converter by AP Exhaust®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Three-Way No / Air OBDII By...
      A multitude of Universal converter bodies provided for maximum coverageProvides professional installer with immediate installation options
      $140.90 - $183.93
    • (0 reviews)
      # mpn474117777
      Universal Large Body Super X Duty Catalytic Converter by AP Exhaust®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without Air Tube. With O2 Sensor Port. Catalytic...
      A multitude of Universal converter bodies provided for maximum coverageProvides professional installer with immediate installation options
      $128.72
    • (0 reviews)
      # 504580905
      Universal Medium Duty Catalytic Converter by AP Exhaust®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Three-Way No / Air OBDII By Design US-EPA Compliant catalytic...
      A multitude of Universal converter bodies provided for maximum coverageProvides professional installer with immediate installation options
      $89.70 - $105.02
    • (0 reviews)
      # 504613706
      Universal Standard Duty Spun Body Catalytic Converter by AP Exhaust®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Catalytic...
      A multitude of Universal converter bodies provided for maximum coverageProvides professional installer with immediate installation options
      $41.48




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    2004 Subaru WRX Exhaust Parts Reviews

    Average rating:  4.5  4.5 - 2 reviews
    4.5 of 5
    Header
    The header is really nice, it has really nice welds on it compared to just cheap eBay header. It has a adjustable length on it to let you expand it by maybe an inch if you need just in case its a tight fit. Overall I love this header for the price and quality. Thanks CARiD!
    CPosted by Collin (Poughkeepsie, NY) / February 22, 2017
    2003 Subaru WRX
    Was this review helpful for you? Yes
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