2004 Subaru WRX Performance Engine Parts

    • Agency Power®Adjustable Blow-Off Valve
      $250.00$200.00
      (0)
      Subaru WRX 2004, Adjustable Blow-Off Valve by Agency Power®. The blow off valve is a device that helps relieve pressure between shifts. This keeps the turbo spooled and reduces turbo lag as you go through the gears. In addition,...
      Full T6061 CNC aluminum valveAgency Power text is engraved on the body
      # 15847435
    • Turbosmart®Blow-Off Valve
      $207.55from $166.04
      (0)
      Subaru WRX / WRX STI 2004, Blow-Off Valve by Turbosmart®. Completely redesigned for 2011, this product by Turbosmart is 46% lighter and 25% smaller than the previous model. Designed to provide greater performance through faster...
      Designed for use on large-capacity turbocharger systems and high-horsepower enginesBrings maximum possible performance through faster turbo spool-up from idle and reduced turbo lag between gears
      # 31836866
    • aFe®Pro Guard D2 Oil Filter
      $14.94$11.95
      (0)
      Subaru WRX / WRX STI 2004, Pro Guard D2 Oil Filter by aFe®. aFe created the Pro Guard D2 Oil Filter to handle the extreme conditions typically encountered by a heavy-duty diesel truck. Inside it has a synthetic composite material...
      # 40159557
    • Mishimoto®Aluminum Oil Coolers
      $478.13from $382.50
      (0)
      Subaru WRX / WRX STI 2004, Aluminum Oil Coolers by Mishimoto®. Specially designed for your car, the Mishimoto oil cooler is a direct fit and can be installed in under two hours! Mounted behind the front bumper, the Mishimoto Oil...
      Direct OEM fitHelps you to get the most out of your vehicle
      # 15874991
    • Agency Power®Lightweight Crank Pulley
      $187.50$150.00
      (0)
      Subaru WRX EJ20 / EJ22 / EJ25 Engine RS 2.5L 2004, Lightweight Crank Pulley by Agency Power®. Lightweight crank pulleys have proven horsepower and torque increases time after time. Agency Power chooses to make all of the crank...
      Horsepower and torque increasesMade of CNC machined 6061 aluminum
      # 15847644
    • Mishimoto®Silicone Intercooler Hose Kit
      $108.75from $87.00
      (0)
      Subaru WRX 2004, Silicone Intercooler Hose Kit by Mishimoto®. Mishimoto's Silicone Intercooler Hoses are made from a combination of high-grade silicone and heat-resistant embedded fibers to handle high temperatures and additional...
      Direct OEM fitManufactured from 100% high-grade silicone and heat-resistant embedded fibers
      # 15875758
    • Agency Power®Turbo Inlet Pipe Kit
      $50.00from $40.00
      (0)
      Subaru WRX 2004, Turbo Inlet Pipe Kit by Agency Power®. By providing you with smooth bends, larger diameter piping, and more efficient air flow design, your car will gain performance all around. Quicker turbo spool up, faster...
      Faster throttle responseAluminum
      # 15848504
    • Turbosmart®Blow-Off Valve Flange Adapter Kit
      $88.78$71.02
      (0)
      Subaru WRX / WRX STI 2004, Blow-Off Valve Flange Adapter Kit by Turbosmart®. This kit includes everything required to allow the fitment of a Turbosmart Universal Plumback, Dual Port and Supersonic BOV via quick change V-Band. The...
      Designed to allow the fitment of Turbosmart Universal Plumback, Dual Port and Supersonic BOVMade of high durable materials
      # 24594334
    • Mishimoto®Ancillary Silicone Turbocharger Hose Kit
      $135.00from $108.00
      (0)
      Subaru WRX 2004, Ancillary Silicone Turbocharger Hose Kit by Mishimoto®. Mishimoto turbo hoses are made from a combination of high-grade silicone and heat-resistant embedded fibers for a high-quality replacement kit for your OEM...
      Direct OEM fitManufactured from 100% high-grade silicone and heat-resistant embedded fibers
      # 15876643
    • Mishimoto®Aluminum Intercoolers
      $725.00from $580.00
      (0)
      Subaru WRX / WRX STI 2004, Aluminum Intercoolers by Mishimoto®. The Mishimoto intercooler is manufactured with robust cast aluminum end tanks and a dense bar-and-plate core. This intercooler provides decreased intake temperatures,...
      Direct OEM fitLifetime Warranty
      # 15875519
    • Weapon-R®Aluminum Oil Catch Tank
      $74.38$59.50
      (1)
      Universal Aluminum Oil Catch Tank by Weapon-R®. Whether you’re going racing or just want to look like you are, this aluminum tank will dress up your engine compartment.
      Manufactured from Billet 6061 AluminumBillet Aluminum machined fittings
      # 282224
    • Weapon-R®Aluminum Oil Catch Pro Tank
      $160.00$128.00
      (0)
      Universal Aluminum Oil Catch Pro Tank by Weapon-R®, 2x10 AN Fitting. Whether you’re going racing or just want to look like you are, this aluminum tank will dress up your engine compartment.
      Manufactured from Billet 6061 AluminumBillet Aluminum machined fittings
      # 560911
    • Weapon-R®Neo-Ti Finish Aluminum Oil Catch Tank
      $111.56$89.25
      (0)
      Universal Neo-Titanium Finish Aluminum Oil Catch Tank by Weapon-R®. Whether you’re going racing or just want to look like you are, this Neo-Titanium Finish aluminum tank will dress up your engine compartment.
      Manufactured from Billet 6061 AluminumBillet Aluminum machined fittings
      # 12230434
    • B&M®Engine Oil Cooler
      $188.80$151.04
      (0)
      Universal Engine Oil Cooler by B&M®, Dimensions: 11" x 8" x 1-1/2", Type: Plate, Material: Aluminum, Cooling Rows: 36. The same design as the B&M transmission SuperCooler! Without a cooler, high engine speeds and oil temperatures...
      Stacked plate design coolerEngine oil filter adapter
      # 10015275
    • B&M®Engine and Transmission Black Race SuperCooler™
      $81.94from $65.55
      (0)
      Universal Engine and Transmission Black Race SuperCooler™ by B&M®. B&M SuperCoolers are 100% aluminum construction and use stamped plates sandwiched together to create one of the most efficient oil cooling devices available. Not...
      Stacked Plate design provides better cooling than ordinary fin and tube coolersAll aluminum, over-brazed construction
      # 10015437
    • B&M®Engine and Transmission Polished Race SuperCooler™
      $89.84from $71.87
      (0)
      Universal Engine and Transmission Polished Race SuperCooler™ by B&M®. B&M SuperCoolers are 100% aluminum construction and use stamped plates sandwiched together to create one of the most efficient oil cooling devices available....
      Stacked Plate design provides better cooling than ordinary fin and tube coolersAll aluminum, over-brazed construction
      # 10015446
    • Spec-D®Front Mount Intercooler
      $71.16from $56.93
      (0)
      Universal Front Mount Intercooler by Spec-D®. Spec-D figuratively has their finger on the pulse of the automotive aftermarket, so they can bring you the latest style and best performing parts and accessories.
      Custom style lighting parts for a unique appearance and better visibilityHigh-tech engine parts for the most power and best performance
      # 12395333
    • Kraftwerks®C-Type Rotrex™ Supercharger
      $2,695.00from $2,156.00
      (1)
      Universal C-Type Rotrex™ Supercharger by Kraftwerks®. Includes C-type Rotrex™ Supercharger Head Unit, Magnetic Oil Filter, Oil Lines, Clamps, Oil Reservoir, and 1 Liter of SX 150 Oil. Give your engine more power with Rotrex™...
      Based on advanced traction drive technologyProvide engine with more oxygen resulting in power increase
      # 24955301
    • Kraftwerks®Supercharger Pulley
      $120.00from $96.00
      (0)
      Supercharger Pulley by Kraftwerks®. Use Kraftwerks® and Rotrex™ pulleys to increase your car performance making your Rotrex supercharger work more efficiently by providing pressure boost. Available in various, standard sizes to...
      Provide an increase in efficiency and performanceSpin the supercharger to ensure the boost of pressure
      # 32223252
    • Kraftwerks®Rotrex™ SX150 Traction Fluid
      $162.50$130.00
      (0)
      Universal Rotrex™ SX150 Traction Fluid by Kraftwerks®. Volume: 1L, change at approx. 50k miles. Ensure long service of your supercharger system with Rotrex Traction Oil. It will maintain your supercharger and your engine properly...
      Ensures proper running of your supercharger and your engineNo failures with proper maintenance schedule
      # 32248143
    • Flex-a-lite®GatorClips™ Oil Cooler Mounting Clamps
      $14.33from $11.46
      (0)
      Universal GatorClips™ Oil Cooler Mounting Clamps by Flex-a-lite®. GatorClips® are the most secure way to mount an oil cooler to brackets or flat panels. A stack of three GatorClips® creates an air gap between the cooler and any...
      Heavy duty clips to mount an oil cooler to brackets or flat panelsIncludes mounting bolts and locking nuts for 2-point mount
      # 12919243
    • Spec-D®T3 Turbo Heat Blanket
      $36.23$28.98
      (0)
      Universal T3 Turbo Heat Blanket by Spec-D®. Spec-D figuratively has their finger on the pulse of the automotive aftermarket, so they can bring you the latest style and best performing parts and accessories.
      Custom style lighting parts for a unique appearance and better visibilityHigh-tech engine parts for the most power and best performance
      # 17970429
    • Spec-D®T4 Turbo Heat Blanket
      $45.29$36.23
      (0)
      Universal T4 Turbo Heat Blanket by Spec-D®. Spec-D figuratively has their finger on the pulse of the automotive aftermarket, so they can bring you the latest style and best performing parts and accessories.
      Custom style lighting parts for a unique appearance and better visibilityHigh-tech engine parts for the most power and best performance
      # 17970438
    • Spec-D®Black T25 Turbo Heat Blanket
      $36.23$28.98
      (0)
      Universal Black T25 Turbo Heat Blanket by Spec-D®. Spec-D figuratively has their finger on the pulse of the automotive aftermarket, so they can bring you the latest style and best performing parts and accessories.
      Custom style lighting parts for a unique appearance and better visibilityHigh-tech engine parts for the most power and best performance
      # 17970606
    • Ishino®Crankcase O-Ring
      $4.33from $3.46
      (0)
      Subaru WRX 2004, Crankcase O-Ring by Ishino®.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 may be in need of repair, but before you waste your...
      # 8300803
    • Nippon Reinz®Crankcase O-Ring
      $4.35$3.48
      (0)
      Subaru WRX 2004, Crankcase O-Ring by Nippon Reinz®. Between Crankcase Halves - 19.2 x 2.4mm O-Ring. 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...
      # 8719134
    • Elring®Seal Ring
      $0.63$0.50
      (0)
      Subaru WRX 2004, Seal Ring by Elring®. Sold each - Package=25. Copper. 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 may be in need of repair,...
      # 7667422
    • Ishino®Cam Plug
      $4.36$3.49
      (0)
      Subaru WRX 2004, Cam Plug by Ishino®. 1/2 Moon. Note: (1/2 Moon - Semicircular Plug).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 may be in...
      # 8284499
    • Ishino®Cylinder Head Gasket
      $51.25$41.00
      (0)
      Subaru WRX STI 2458CC 2004, Cylinder Head Gasket by Ishino®.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 may be in need of repair, but before...
      # 8285750
    • Ishino®Cylinder Head Gasket Set
      $367.43$293.94
      (0)
      Subaru WRX 2.0L 2004, Cylinder Head Gasket Set by Ishino®.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 may be in need of repair, but before...
      # 8286352
    • Ishino®Timing Cover Grommet
      $3.89$3.11
      (0)
      Subaru WRX 2004, Timing Cover Grommet by Ishino®.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 may be in need of repair, but before you waste...
      # 8291161
    • ISHINO®Valve Cover Gasket Set
      $88.11$70.49
      (0)
      Subaru WRX 2.0L 2004, Valve Cover Gasket Set by Ishino®. Note: This gasket set includes (1 pc.) 13270 AA162 valve cover gasket; and (1 pc.) 13272 AA094 valve cover gasket; and (16 pcs.) valve cover sealing washers.Is your vehicle...
      # 8291843
    • Ishino®Valve Cover Gasket
      $18.70from $14.96
      (0)
      Subaru WRX STI 2458CC 2004, Valve Cover Gasket by Ishino®. Spark plug well seals and cam plug ½-moons are not included (order separately). Note: Spark Plug Well Gaskets Serviced Separately.Is your vehicle feeling down on power? Do...
      # 8296767
    • Ishino®Exhaust Flange Gasket
      $16.48$13.18
      (0)
      Subaru WRX 2004, Exhaust Flange Gasket by Ishino®. Exhaust Manifold to Turbocharger Inlet Pipe.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...
      # 8299817
    • Ishino®Timing Cover Gasket
      $3.49from $2.79
      (0)
      Subaru WRX 2004, Timing Cover Gasket by Ishino®.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 may be in need of repair, but before you waste...
      # 8305142
    • Ishino®Turbo Outlet Gasket
      $34.13$27.30
      (0)
      Subaru WRX 2004, Turbo Outlet Gasket by Ishino®.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 may be in need of repair, but before you waste...
      # 8306775
    • Ishino®Valve Stem Seal
      $5.54from $4.43
      (0)
      Subaru WRX 2004, Valve Stem Seal by Ishino®.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 may be in need of repair, but before you waste your...
      # 8309726
    • Ishino®Turbo Oil Line O-Ring
      $1.06$0.85
      (0)
      Subaru WRX 2004, Turbo Oil Line O-Ring by Ishino®.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 may be in need of repair, but before you waste...
      # 8312938
    • Mahle®Intake Manifold Gasket
      $20.33$16.26
      (0)
      Subaru WRX 2004, Intake Manifold Gasket by Mahle®. Note: Between Upper and Lower Intake Manifold.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...
      # 8542559
    • Nippon Reinz®Cylinder Head Gasket
      $80.44$64.35
      (0)
      Subaru WRX 2.0L 2004, Cylinder Head Gasket by Nippon Reinz®. 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 may be in need of repair, but...
      # 8713441
    • Nippon Reinz®Intake Manifold Gasket
      $9.30$7.44
      (0)
      Subaru WRX 2004, Intake Manifold Gasket by Nippon Reinz®. Note: To Cylinder 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 may be in need...
      # 8714812
    • Nippon Reinz®Timing Cover Gasket
      $4.93$3.94
      (0)
      Subaru WRX 2004, Timing Cover Gasket by Nippon Reinz®. Position: Left. Note: Diamond Shaped Gasket. 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...
      # 8715746
    • Nippon Reinz®Valve Cover Seal Washer
      $5.25$4.20
      (0)
      Subaru WRX 2004, Valve Cover Seal Washer by Nippon Reinz®. OEM. Note: This is the sealing washer for the cam end cover on the cylinder head.. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you...
      # 8716017
    • Nippon Reinz®Exhaust Manifold Gasket
      $32.64$26.11
      (0)
      Subaru WRX 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 may be in...
      # 8720643
    • Nippon Reinz®Spark Plug Seal
      $16.85$13.48
      (0)
      Subaru WRX 2004, Spark Plug Seal by Nippon Reinz®. 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 may be in need of repair, but before you...
      # 8721449
    • Nippon Reinz®Valve Cover Gasket
      $23.23from $18.58
      (0)
      Subaru WRX 2.0L 2004, Valve Cover Gasket by Nippon Reinz®. Note: Spark Plug Well Seals and Cam Plug 1/2-Moons Are Serviced Separately. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is...
      # 8721640
    • K&N®Spin-On Oil Filter
      $22.34$17.87
      (0)
      Subaru WRX 2004, Spin-On Oil Filter by K&N®.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 may be in need of repair, but before you waste your...
      # 8280945
    • Full®Spin-On Oil Filter
      $7.68$6.14
      (0)
      Subaru WRX 2004, Spin-On Oil Filter by Full®. 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 may be in need of repair, but before you waste...
      # 8017052
    • GMB®Timing Belt Idler
      $46.03$36.82
      (0)
      Subaru WRX 2004, Timing Belt Idler by GMB®. Position: Left Lower. Note: Cogged (Grooved) Roller. Do you hear chirping or squealing noise? Has the “power” disappeared from your steering? Does your engine crank slowly and are...
      # 7880699
    • Koyo®Timing Belt Idler
      $51.48$41.18
      (0)
      Subaru WRX 2004, Timing Belt Idler by Koyo®. Double Style Bearing. When replacing an earlier design idler on some older engines with this later design bearing, a different length retaining bolt may be required. Note: Smooth Roller....
      # 7697902
    • NSK®Timing Belt Idler
      $57.69$46.15
      (0)
      Subaru WRX 2004, Timing Belt Idler by NSK®. Double Roller. Position: Left Lower. Note: Cogged (Grooved) Roller. Do you hear chirping or squealing noise? Has the “power” disappeared from your steering? Does your engine crank...
      # 7839424
    • NTN®T-Belt Tension Assembly
      $153.19$122.55
      (0)
      Subaru WRX 2004, T-Belt Tension Assembly by NTN®. This tensioner assembly includes both the automatic tension adjuster and the bearing/roller. 1 PIECE TENSIONER. The roller does not come separately even though it un-bolts from the...
      # 7813136
    • NTN®Timing Belt Idler
      $64.18$51.34
      (0)
      Subaru WRX 2004, Timing Belt Idler by NTN®. Position: Left Upper. Small, Smooth Roller on Tensioner Bracket. Lower. Note: Small Smooth Roller on Tensioner Bracket. Do you hear chirping or squealing noise? Has the “power”...
      # 7813269
    • Qualiseal®Valve Cover Seal Washer
      $4.33$3.46
      (0)
      Subaru WRX 2004, Valve Cover Seal Washer by Qualiseal®. OEM. Note: This is the sealing washer for the cam end cover on the cylinder head.. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park?...
      # 7729706
    • Replace®OE Replacement Engine
      $5,373.44from $4,298.75
      (0)
      Subaru WRX 2004, OE Replacement Remanufactured Engine by Replace®. C10 Engine, C12 Engine, ISO 14000 and ISO 9000 Quality Control. "Sim Tested" for Compression, Leaks, Noises, Oil Pressure. If your engine is worn out, don’t just...
      Designed to be better than newReverse engineered to ensure any factory defects are eliminated
      # 23117328
    • Delphi®Engine Crankshaft Position Sensor
      $49.56$39.65
      (0)
      Subaru WRX 2004, Engine Crankshaft Position Sensor by Delphi®. Delphi sensors use the Hall Effect or magneto resistive (MR) principles for accurate and clean signal input to the electronic control module (ECM). The result is more...
      Extensive coverageApplications for ignition (camshaft and crankshaft position and speed), transmission (vehicle or engine speed) and anti-lock braking systems (wheel speed)
      # 24558414
    • Beck Arnley®Crankshaft Seal
      $7.50from $6.00
      (0)
      Subaru WRX 2004, Crankshaft Seal 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 the...
      OE quality products from top original equipmentTop quality materials
      # 35861817
    • Standard®Tru-Tech™ Crankshaft Position Sensor
      $33.09$26.47
      (0)
      Subaru WRX / WRX STI 2004, Tru-Tech™ Crankshaft Position Sensor by Standard®, Use 1 per Car. Type Connection: Male, Female. Terminal Type: Blade. Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on?...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      # 23770787
    • Fel-Pro®Crankshaft Seal Kit
      $16.26from $13.01
      (0)
      Subaru WRX 2004, Crankshaft Seal Kit by Fel-Pro®. If you are looking for quality sealing solutions, Fel-Pro offers you various replacement products from seals and bolts to O-Rings and dowel pins. Engineered using the latest...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      # 40720467
    • Timken®Engine Crankshaft Seal
      $10.18from $8.14
      (0)
      Subaru WRX 2004, Engine Crankshaft Seal by Timken®. Timken offers the right seal to keep your vehicle running optimally. Timken seals provide ultimate protection from contaminants and help retain lubricants and liquids, ensuring...
      Machined rubber sealing edge provides greater accuracy and consistency and a better sealing surfaceAn extra dust lip helps keep harmful contaminants out and protects against rust and corrosion
      # 20509185



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    2004 Subaru WRX Performance Engine Parts Reviews
    Average rating:54.8 - 1 reviews
    5(4.8)
    APPEARANCE10
    EASE OF INSTALLATION10
    PRICE/VALUE10
    QUALITY8
    2014 Subaru WRX
    | Posted by | (Manheim, PA)

    BOV works and sounds awesome! It has a nice finish in the blue color. Very easy install. Just had to adjust the spring little by little, so car wouldn't stall out. Keeps turbo spooled up and ready to fly!

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    2004 Subaru WRX Models
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    • 2004 Subaru Impreza WRX STI Performance Engine Parts