2004 Subaru WRX Performance Headers

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    • (0 reviews)
      # 1221560
      Subaru WRX / WRX STI Sedan 2004, Header by Borla®. Primary Tubing Diameter: 1.63". Collector Outlet Diameter: 2.25". CARB Compliant: No. 304 stainless steel for long life. Connects to the factory mid-pipe. Mandrel-bent for smooth...
      Austenitic 304 stainless steel tubing means a lifetime product that won’t ever corrode or deteriorateAll bends are mandrel-bent for smooth transitions and maximum flow characteristics
      $659.99
    • (0 reviews)
      # 114340114
      Subaru WRX STI EJ207 Engine With GDB Chassis Non-US Model 2004, 304 SS Turbo Exhaust Manifold by HKS®. Size: 42.7 mm. You can have the great performance and great muffler sound of the isometric layout by changing exhaust manifold...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $819.16
    • (0 reviews)
      # 15848110
      Subaru WRX STI 2004, Stainless Steel by Agency Power®. Adding a high quality exhaust header is a great way to gain power for your car. The Agency Power stainless steel exhaust header is constructed with quality in mind and the...
      Increases horsepower and torqueManufactured from 304 stainless steel
      $600.00 - $700.00
    • (0 reviews)
      # 81935395
      Subaru WRX STI 2.5L 2004, Exhaust Header by Invidia®. Piping Diameter: 1.65"-1.65"-1.97" (42 mm-42 mm-50 mm). Material: Stainless Steel. Do you want to get more power out of your vehicle? Then this superior Invidia product is just...
      Made to boost the performance of your vehicleExpertly crafted from premium materials
      $1,083.60
    • (0 reviews)
      # 82182450
      Subaru WRX STI 2.5L 2004, Racing Exhaust Manifold by Invidia®. Piping Diameter: 1.65" (42 mm). Material: Stainless Steel. 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
      $927.50
    • (0 reviews)
      # 99035901
      Subaru WRX / WRX STI 2004, EL 4-1 Performance Holy Header by Killer B Motorsport®. The Killer B Motorsport Holy Header was developed using state of the art CAD software & simulations to determine optimal design to increase power as...
      $1,249.00 - $1,905.00
    • (0 reviews)
      # 84938475
      Subaru WRX 2004, Equal Length Header by PERRIN Performance®. Create a smooth sounding exhaust note while increasing horsepower and torque with the PERRIN E4-Series Equal Length Header. The new PERRIN E4-Series Equal Length Header...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $900.00 - $981.00
    • (0 reviews)
      # 61627148
      Subaru WRX / WRX STI 2004, 0.030" MLS Exhaust Head Gasket by Cometic Gasket®. Compressed Thickness: 0.030". Port Style: Stock. Cometic MLS Gaskets are comprised of multiple layers of stainless steel providing a even load across the...
      Made of High Quality MaterialsBuilt to Last
      $33.03
    • (0 reviews)
      # 116543160
      Subaru WRX 2004, Manifold Gasket Set by Magnum Gasket®. Standard Material. 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...
      Made of High Quality MaterialsThe best combination of steel layers and high-temp gasket materials
      $8.96
    • (0 reviews)
      # 106243095
      Subaru WRX 2004, Rear Stainless Steel Small Oval Catalytic Converter by Walker®. Location: Rear. Catalytic Converter Substrate Material: Ceramic. CARB Compliant: No. Converter Configuration: Direct-Fit. Converter Body Material:...
      Designed to meet your vehicle’s specific emissions requirementsDirect fit replacement
      $85.64
    • (0 reviews)
      # 8714319
      Subaru WRX / WRX STI 2004, Exhaust Manifold Gasket by Nippon Reinz®. Exhaust Manifold to Head. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine...
      $26.45
    • (0 reviews)
      # 93496718
      Subaru WRX 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
      $11.92
    • (0 reviews)
      # 35813805
      Subaru WRX / WRX STI 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...
      OE quality products from top original equipmentTop quality materials
      $13.22
    • (0 reviews)
      # 81878665
      Subaru WRX 2004 Exhaust Manifold Gasket Set by DNJ Engine Components®. Get this top-grade quality replacement for your worn out part from DNJ. Expertly crafted from premium materials, this product is of the finest quality to...
      Designed to restore your vehicle's original performanceProvides superior sealing performance
      $7.13 - $22.75
    • (0 reviews)
      # 97663837
      Subaru WRX 2004, Exhaust Manifold Gasket by AJUSA®. Gasket Material:Metal. 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...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      $4.94
    • (0 reviews)
      # 31532206
      Subaru WRX 2004, Front Exhaust Manifold Bolt and Spring Kit by Dorman®. Material: Steel. Bolt Grade: 5. Dog Point Fastener: No. Pilot Point Fastener: No. PackageType: Card. Includes: 1 Bolt, 1 Spring, 1 Nut. Exhaust manifold...
      New hardware helps fix exhaust leaksDepending on the application, kits include hardware to securely attach the manifold to the exhaust system
      $9.80
    • (0 reviews)
      # mpn358949929
      Universal 3 1/2" Chrome Lake Pipes by Patriot Exhaust®, Sold as a Pair. Includes Muffler, Brackets. Side Pipe made from Steel. Chrome Lake Pipes 63". Show quality chrome Lake Pipe 4 kits connect to headers or stock exhaust system...
      The look of an expensive tuned header side pipe at a fraction of the costSide pipes come with built-in six sided louvered cored mufflers which absorb sound not horsepower
      $332.21
    • (0 reviews)
      # 129719012
      Universal Mild Steel 80 Degree Elbow by Dynatech®. 1 Piece. Specifically designed for use with Dynatech Dirt Late Model Headers. This is an excellent way to get the exhaust routed inside the sheet metal on the driver’s side.
      Delivers a huge boost in performance and an awesome soundRigorously dyno-tested to provide maximum horsepower and torque gains
      $27.99
    • (0 reviews)
      # 468746
      Subaru WRX 2004, Aluminized Steel Header Collector Ball Flange Kit by Flowmaster®, Sold in Pairs. The Collector Ball Flange takes the place of the messy three-bolt connections and ensures a leak-free and connection. The ball type...
      Replaces Messy 3-Bolt Flange ConnectionEnsures Leak Free Connection
      $99.00
    • (1 reviews)
      # 469150
      Subaru WRX 2004, Scavenger Series Y-Collector by Flowmaster®. The patented Scavenger Y-Collector is based on the principles of Pulse Technology. They are designed to harmonize the exhaust pulses from two cylinders that are at the...
      Race Proven TechnologyPatented Design that Creates Low Pressure Zones for Better Scavenging
      $46.99 - $70.30
    • (0 reviews)
      # mpn1295593899
      Universal 304 SS 2-Bolt Manifold Flange (3.02" ID, 0.43" Bolt Holes) by Stainless Works®. Primary Tubing Diameter: 3.02". This superior product is made from high-grade stainless steel to ensure excellent quality and maximum...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $36.00
    • (0 reviews)
      # 129455697
      Universal 304 SS Collector Flange by Stainless Works®. This superior product is made from high-grade stainless steel to ensure excellent quality and maximum resistance to corrosion. Engineered with careful attention to the smallest...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $22.50 - $43.20
    • (0 reviews)
      # mpn458111276
      Universal J-SPEC Header Outlet Flange Kit by Vibrant Performance®. This kit consists of a 2-bolt connecting flange (with a flared outlet neck) and a 2.5" Inlet Diameter donut style Graphite Gasket. Features 45 mm O.D. primaries...
      Made of High Quality MaterialsDirect Fit
      $48.09
    • (0 reviews)
      # 118615405
      Universal Stainless Steel Merge Collectors by Vibrant Performance®. Vibrant Performance offers a comprehensive, high quality and affordably priced range of T304 Stainless Steel Merge Collectors to help free up maximum horsepower...
      Help free up maximum horsepowerEasy To Use
      $71.95 - $267.54
    • (0 reviews)
      # 129719033
      Universal High-flow Slip On Collector by Dynatech®. 1 Piece. Dynatech High-Flow Slip On Collectors are designed with maximum exhaust flow in mind. With a High-Flow long transition area, these collectors maximize flow to help you...
      Collectors come race-ready right out of the boxAvailable in a wide variety of primary tube and collector outlet sizes
      $69.99 - $129.99
    • (0 reviews)
      # 129719044
      Universal Mild Steel High-Velocity Merge Collector by Dynatech®. 1 Piece. Dynatech Merge Collectors are an excellent way to maximize the potential of your exhaust system. When your exhaust system requires the maximum horsepower, a...
      Maximizes the potential of the exhaust systemMade of High Quality Materials
      $269.99 - $289.99
    • (0 reviews)
      # mpn458001350
      2.5" Exhaust Donut by Blox Racing®.
      $10.00
    • (0 reviews)
      # mpn458001349
      3" Exhaust Gasket by Blox Racing®.
      $4.80
    • (0 reviews)
      # mpn458001351
      38 mm Wastegate Flange by Blox Racing®. BLOX Racing offers a full line of DIY performance parts. The Performance DIY line is perfect for building and assembling your own high performance component and products. Wastegate flanges...
      $11.20
    • (0 reviews)
      # mpn458001364
      Billet Oil Drain Flange by Blox Racing®.
      $16.00
    • (0 reviews)
      # 134419261
      Box Merge Collector by Blox Racing®. BLOX Racing is proud to offer its Performance DIY product line for today's growing Do-It-Yourself fabricator. Whether you are just learning to fabricate and weld or you are a seasoned veteran,...
      $64.00 - $80.00
    • (0 reviews)
      # mpn458001357
      Check Engine Light Eliminator Adapter by Blox Racing®. A must have for any high performance engine and exhaust combination.
      $4.80
    • (0 reviews)
      # 134419298
      Header Collector Flange by Blox Racing®. BLOX Racing offers a full line of DIY performance parts. The Performance DIY line is perfect for building and assembling your own high performance component and products. Experienced...
      $20.00
    • (0 reviews)
      # 134419312
      O2 Bung by Blox Racing®. BLOX Racing offers a full line of DIY performance parts. BLOX Racing oxygen sensor bungs and fitting caps are available for any custom header or exhaust system requiring sensors or custom mounting locations.
      $5.60 - $7.20
    • (0 reviews)
      # mpn458001339
      T3 Discharge Flange by Blox Racing®.
      $16.00
    • (0 reviews)
      # mpn458001340
      T3 Inlet Flange Divided by Blox Racing®.
      $20.00
    • (0 reviews)
      # 134419330
      T3 Inlet Open Flange by Blox Racing®. BLOX Racing offers a full line of DIY performance parts. The Performance DIY line is perfect for building and assembling your own high performance component and products. Experienced...
      $20.00
    • (0 reviews)
      # mpn458001345
      T3/T4 Dual Open Pattern Flange by Blox Racing®.
      $24.00
    • (0 reviews)
      # mpn458001344
      T4 Inlet Open Flange by Blox Racing®.
      $20.00
    • (0 reviews)
      # mpn458001338
      T25 Inlet Flange by Blox Racing®.
      $18.40
    • (0 reviews)
      # 129184070
      Universal by Jones Exhaust®. 1 Pair. Inlet Diameter: 3".
      $18.60 - $32.80
    • (0 reviews)
      # 129184071
      Universal 3-Bolt Flange Header Collector Extension by Jones Exhaust®. 1 Piece. Length: 5".
      $9.88 - $12.73
    • (0 reviews)
      # 91560810
      Universal 4-1 Formed Collectors by Patriot Exhaust®, 1 Pair. Collector made from Mild Steel. 16-gauge tubing. Patriot Exhaust's formed collectors provide a smooth transition point for superior exhaust scavenging. Choose from a wide...
      $35.51 - $67.55
    • (0 reviews)
      # 91560817
      Universal Collector Reducers by Patriot Exhaust®, 1 Pair. Includes Bolts/Studs, Gaskets. Collector Reducers. Patriot Exhaust collector reducers are zinc plated to minimize corrosion while providing a weldable finish. All collector...
      Available in a wide variety of diameters and lengthsZinc plated to minimize corrosion
      $25.04 - $30.69
    • (0 reviews)
      # 87258403
      Universal Collector Insert Reducers by Schoenfeld Headers®. This top-notch product by Schoenfeld Headers is made to give that extra boost that every driver appreciates. This product is designed with utmost care and meticulous...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $20.77
    • (1 reviews)
      # mpn753352383
      Universal 3" Header Reducer by BTP®. This premium quality part by BTP helps your exhaust system to perform at its full efficiency as well as provide your vehicle with a more aggressive and powerful sound. This part is made from...
      Engineered to make your exhaust system perform at its peakProvides a powerful and aggressive sound
      $10.25
    • (0 reviews)
      # 129455698
      Universal 304 SS Header Collectors by Stainless Works®. This superior product is made from high-grade stainless steel to ensure excellent quality and maximum resistance to corrosion. Engineered with careful attention to the...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $5.85 - $189.00
    • (0 reviews)
      # 129455727
      Universal 304 SS Header Collectors Diamond by Stainless Works®. This superior product is made from high-grade stainless steel to ensure excellent quality and maximum resistance to corrosion. Engineered with careful attention to the...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $2.70
    • (0 reviews)
      # 87258405
      Universal Exhaust 2-1 Y-Collector by Schoenfeld Headers®, 1 Piece. Color: Black. Slip-Fit. Y-Pipe made from Steel. This top-notch product by Schoenfeld Headers is made to give that extra boost that every driver appreciates. This...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $101.03 - $112.26
    • (0 reviews)
      # 87258402
      Universal Header Collector by Schoenfeld Headers®, 1 Piece. 4 tubes into 1 tube. Collector made from Steel. This top-notch product by Schoenfeld Headers is made to give that extra boost that every driver appreciates. This product...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $44.67 - $51.93
    • (0 reviews)
      # 87258418
      Universal Slip Over Collector by Schoenfeld Headers®. This top-notch product by Schoenfeld Headers is made to give that extra boost that every driver appreciates. This product is designed with utmost care and meticulous attention...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $44.67 - $47.09
    • (0 reviews)
      # mpn1673775281
      Universal Exhaust Manifold Flange by Vibrant Performance®. Thickness: 0.375". Do you want to get more power out of your vehicle? Then this superior Vibrant Performance product is just for you. Carefully designed for maximum...
      Made of High Quality MaterialsAvailable in different sizes
      $146.21
    • (0 reviews)
      # 129175238
      Universal Exhaust Wrap by Design Engineering®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and...
      $10.62 - $112.85
    • (0 reviews)
      # mpn358594685
      Universal Heat Screen by Design Engineering®. 1 Piece. 36" x 40". Heat Screen offers an excellent way to reflect radiant heat away from a vehicle‘s interior and because of its flexibility, can be trimmed-to-size to protect...
      $75.07
    • (0 reviews)
      # mpn358594684
      Universal Heat Screen™ with Adhesive Backing by Design Engineering®. 1 Piece. 36" x 40" (10 sq. ft.). Adhesive backed aluminized mylar radiant matting. Heat Screen™ with adhesive backing is an excellent method for reflecting...
      $99.74
    • (0 reviews)
      # 129175254
      Universal Reflect-A-Cool Heat Reflective Tape Sheet by Design Engineering®. 1 Piece. Reflect-A-Cool, constructed of fiberglass material backed with a layer of aluminized reflective foil to handle direct continuous temperature of...
      $12.19 - $66.51
    • (0 reviews)
      # 129175255
      Universal Reflect-A-Gold Heat Reflective Tape by Design Engineering®. 1 Piece. Reflect-A-GOLD is a metalized polyamide polymer laminated glass cloth with a high temperature pressure sensitive adhesive for use in extreme temperature...
      $20.72 - $77.00
    • (0 reviews)
      # 129175257
      Universal Titanium Exhaust Wrap with LR Technology by Design Engineering®. 1 Piece. Wrap made from Lava rock. Titanium exhaust wrap, with LR Technology, is made from pulverized lava rock and stranded into a fiber material and woven...
      $17.05 - $57.10
    • (0 reviews)
      # 91560813
      Universal Collector Flange Kit by Patriot Exhaust®. Flange kits include two flanges, gaskets and flange bolts. All round collector flanges include two block off plates and two flanges.
      Available in a variety of diameters2 bolt and 3 bolt applications available
      $12.97 - $16.37
    • (0 reviews)
      # mpn359116148
      Universal Collector Flange, 2.500" ID, 3 Hole by Schoenfeld Headers®. This top-notch product by Schoenfeld Headers is made to give that extra boost that every driver appreciates. This product is designed with utmost care and...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $5.86




    2004 Subaru WRX Performance Headers Reviews

    Average rating:  4.5  4.5 - 39 reviews
    5 of 5
    CanAmMex® 00747-212 - Thunderbolt™ Hi-Polished Single Rolled Angled Oval Tip
    These appear to be of very good quality, good welds.
    JPosted by John (Enfield, CT) /
    Was this review helpful for you? Yes
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