2004 Subaru WRX Performance Exhaust Systems

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    • (0 reviews)
      # 35201460
      Subaru WRX 2004, Street Series Stainless Steel Cat-Back Exhaust System with Tip by MagnaFlow®. Tip Material: Stainless. Muffler Sound: MODERATE. Exit Location: Single Straight Driver Side Rear Exit. Exit Quantity: Single. Finish:...
      Moderate SoundDelivers More Horsepower
      $685.64 - $685.69
    • (0 reviews)
      # 86041468
      Subaru WRX STI 2.5L 2004, S-Type™ Stainless Steel Single Cat-Back Exhaust System by Borla®. Muffler Sound: AGGRESSIVE. Muffler Series: S-Type™. System Type: Cat-Back. Exit Location: Single Left Rear Exit. Exit Configuration:...
      Aggressive Plus SoundIncreased exhaust flow for better performance
      $689.99
    • (0 reviews)
      # 50386767
      Subaru WRX 2004, Touring™ Stainless Steel Single Cat-Back Exhaust System by Borla®. Muffler Sound: MILD TONE. Muffler Series: Touring™. System Type: Cat-Back. Exit Location: Dual Left Rear Exit. Exit Configuration: Dual. Main...
      Mild Growl SoundHorsepower and torque increased by 7 – 10%
      $709.99
    • (0 reviews)
      # 16118542
      Subaru WRX 2004, N-II 304 SS Cat-Back Exhaust System with Polished Tip by ARK Performance®. Exhaust Type: Cat-Back. Tubing Diameter: 3". The ARK N-II cat-back exhaust system offers straight-through technology, offset tip design,...
      All Bolt-on SystemStraight-through Muffler Core
      $944.25
    • (0 reviews)
      # 70194013
      Subaru WRX / WRX STI 2004, Carbon-Ti Series 304 SS Cat-Back Exhaust System by HKS®. Tubing: 3". Tip Style: HP-Ti. Tip Size: 4.7". Professionally developed with a racer in mind, this HKS exhaust system provides an easy opportunity...
      Upgrades both the horsepower and sound of your vehicleMade from premium quality materials
      $709.53
    • (0 reviews)
      # 78719820
      Subaru WRX / WRX STI 2004, Hi-Power Series 304 SS Cat-Back Exhaust System by HKS®. Tubing: 3". Tip Style: HP. Tip Size: 4.7". 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
      $453.47
    • (0 reviews)
      # 70195854
      Subaru WRX 2004, Legamax Series 304 SS Exhaust System by HKS®. Sound (Close): 88 dB. Sound (Idle): 67 dB. Tubing: 3". Tip Style: LM-B. Tip Size: 4.1" Oval. Professionally developed with a racer in mind, this HKS exhaust system...
      Upgrades both the horsepower and sound of your vehicleMade from premium quality materials
      $598.85
    • (0 reviews)
      # 97200612
      Subaru WRX 2004, Sport Series 409 SS Exhaust System by HKS®. Tubing: 3". Tip Style: DR. Tip Size: 4.2". Professionally developed with a racer in mind, this HKS exhaust system provides an easy opportunity to upgrade both the...
      Upgrades both the horsepower and sound of your vehicleMade from premium quality materials
      $487.34
    • (0 reviews)
      # 70194011
      Subaru WRX With GDB Chassis 2004, Super Turbo Series 304 SS Exhaust System by HKS®. Sound (Close): 90 dB. Sound (Idle): 73 dB. Tubing: 3". Tip Style: SSR. Tip Size: 4.9". Professionally developed with a racer in mind, this HKS...
      Effective on stock to high performance vehicles w/ upgraded turbines.The performance exhaust sound meets the JASMA standard.
      $892.08
    • (0 reviews)
      # 15847517
      Subaru WRX STI 2004, System Type: Cat-Back. Exhaust System with Titanium Muffler by Agency Power®. The Cat-Back is designed for customers seeking increased performance and better economy, combined with a powerful and well tuned...
      Suitable for Everyday DrivingIncreases Power
      $800.00
    • (0 reviews)
      # 11019607
      Subaru WRX / WRX STI 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...
      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)
      # 78253589
      Subaru WRX 2004, N1 Style 304 SS Cat-Back Exhaust System with Tip by Spec-D®. Exhaust Type: Cat-Back. Exhaust Pipe Material: Stainless Steel. Exit Location: Driver Side Rear Exit. Exit Configuration: Single. Exhaust Type: Cat-Back....
      Made of high quality T-304 stainless steelMaximum performance which increases up to 15 horsepower
      $151.30 - $160.20
    • (0 reviews)
      # 132242887
      Subaru WRX Wagon 2004, N1 Evo-R 304 SS Cat-Back Exhaust System by APEXi®. Muffler Configuration: Center - Center. Muffler Inlet Diameter: 3". Muffler Outlet Diameter: 4.53". Muffler Sound: Deep Tone. Muffler Structure: Straight...
      Ideal for the daily driver car of an enthusiastMade from high-quality materials
      $553.61
    • (0 reviews)
      # 93989272
      Subaru WRX 2004, NOIR Exhaust System by APEXi®. Tubing Diameter: 3". Includes: NOIR Muffler, Piping, and all necessary hardware. The NOIR Muffler was developed specifically with the diehard street car enthusiast in mind. The NOIR...
      Muffler is based on the "Original" WS (World Sport) Muffler Canister and TipFinished with an ALL Matte-Black Color Powdercoat from Piping - to - Tip
      $598.90
    • (0 reviews)
      # 132243424
      Subaru WRX 2004, WS2 Mild Cat-Back Exhaust System by APEXi®. Tubing Diameter: 2.5". Exhaust Material: Stainless Steel. The WS Exhaust series is the A'PEX answer to the ultimate street muffler system with all around performance. The...
      Designed to boost your vehicle's performanceProvides excellent low and mid range power without excessive noise
      $637.26
    • (0 reviews)
      # 95333265
      Subaru WRX / WRX STI 2004, Full Titanium Racing Cat-Back Exhaust System by Invidia®. Piping Diameter: 3.15" (80 mm). Tip Outlet Diameter: 4.33" (110 mm). Material: Titanium. Bended forming, Piping Inside and outside smooth with...
      Casting Flanges beta 6/4 Titanium AlloyAwesome strength
      $1,330.00
    • (0 reviews)
      # 95333325
      Subaru WRX 2004, G200 Stainless Steel Cat-Back Exhaust System by Invidia®. Piping Diameter: 2.99" (76 mm). Tip Outlet Diameter: 4.92" (125 mm). Material: Stainless Steel. 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 304 SS Cat-Back Exhaust System by Invidia®. Piping Diameter: 2.99" (76 mm). Tip Outlet Diameter: 3.98" (101 mm). Material: Stainless Steel. 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 Racing 304 SS Cat-Back Exhaust System by Invidia®. Piping Diameter: 2.99" (76 mm). Tip Outlet Diameter: 3.98" (101 mm). Material: Stainless Steel. For a good balance of price and performance, Invidia offers the...
      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 with Stainless Steel Rolled Tip by Invidia®. Piping Diameter: 2.99" (76 mm). Tip Outlet Diameter: 4.33" (110 mm). Material: Stainless Steel. The flat bottom shaped...
      SUS304 polished stainless steel pipingMandrel bent to shape
      $648.20
    • (0 reviews)
      # 84938467
      Subaru WRX 2004, 304 SS Cat-Back Exhaust System with Single Tip by PERRIN Performance®. Tubing: 3". PERRIN Performance mufflers have a true 3" internal diameter for uninterrupted exhaust flow. PERRIN mufflers and flange connections...
      Straight-through muffler for uninterrupted exhaust flow4" slash cut exhaust tip adds an aggressive look
      $607.50
    • (0 reviews)
      # 61628536
      Subaru WRX / WRX STI 2004, Medalion Touring Exhaust by Tanabe®. Turbo Back Exhaust System. Piping: 80mm. Tip: 115mm. Sedan.
      $693.50
    • (0 reviews)
      # 85543345
      Subaru WRX 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...
      $700.00
    • (0 reviews)
      # 85543346
      Subaru WRX 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)
      # 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)
      # 140490567
      Subaru WRX / WRX STI 2004, 304 SS Turbo Manifold by DC Sports®. DC Sports Turbo Manifolds are the perfect upgrade for customers looking to extract the most power from their factory turbocharged vehicle. Because of the high...
      $437.99
    • (0 reviews)
      # 82452762
      Subaru WRX 2004, Exhaust Header by Spec-D®. 2 Pieces. Make whatever you drive run and sound like a high-performance machine with a Spec-D Exhaust System. Constructed from durable, never rust, stainless steel, this Header comes with...
      Increase up to 12-15 hp1.5" primary tune / 2.5" collector
      $151.30
    • (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)
      # 98137062
      Subaru WRX 2004, Direct Fit Federal OEM Grade Front Catalytic Converter with Header by MagnaFlow®. Catalytic Series: OEM Grade. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. Location:...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $583.50
    • (0 reviews)
      # 85644769
      Subaru WRX / WRX STI 2004, Direct Fit Federal OEM Grade Rear Catalytic Converter by MagnaFlow®. Catalytic Series: OEM Grade. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. Location: Rear....
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $398.76
    • (0 reviews)
      # 61590407
      Subaru WRX 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
      $320.31 - $485.43
    • (0 reviews)
      # 38815752
      Subaru WRX 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 welded...
      Increases performance by maximizing power and flowConstructed from T-304 stainless steel
      $162.99
    • (0 reviews)
      # 91021403
      Subaru WRX 2004, Pro Venom 250-Series Muffler (3" Center Inlet-Outlet Muffler, 14"x9"x4" Body) by Black Widow®. Muffler Chamber Size: 14"x9"x4". Inlet Diameter: 3". Outlet Diameter: 3". Finish: 14-Gauge Polished304 Stainless Steel....
      Made out of durable 304 stainless-steelProducing a crisp, clean sound
      $165.28
    • (0 reviews)
      # 91021401
      Subaru WRX 2004, Venom 250-Series Muffler (3" Center Inlet-Outlet Muffler, 14"x9"x4" Body) by Black Widow®. Muffler Chamber Size: 14"x9"x4". Inlet Diameter: 3". Outlet Diameter: 3". Finish: 14-Gauge Brushed 430 Stainless Steel....
      Made of brushed Stainless SteelHigh performance sound characteristics
      $131.95
    • (0 reviews)
      # 70195873
      Subaru WRX 2004, Stainless Steel Off-Road Downpipe by HKS®. Size: 3". Reduction of secondary exhaust gas back pressure will improve response of turbocharger. EJ engines' common problem of knocking due to high exhaust gas pressure...
      Provides the passageway for exhaust gas which originates at the cylinder head and exits at the tail pipeMade from premium quality materials
      $132.16 - $329.57
    • (0 reviews)
      # 70193932
      Subaru WRX / WRX STI 2004, Stainless Steel Up-Pipe by HKS®. Polished Stainless Steel. Size: 45 mm. This product is made from materials of the highest possible quality to ensure exceptional durability to withstand the most severe...
      Provides the passageway for exhaust gas which originates at the cylinder head and exits at the tail pipeMade from premium quality materials
      $165.20
    • (0 reviews)
      # 379193
      Subaru WRX 2004, Downpipe by Injen®. Eliminate restriction and maximize exhaust flow with this quality stainless steel downpipe.
      $302.18 - $439.88
    • (0 reviews)
      # 15848165
      Subaru WRX STI 2004, Stainless Steel Uppipe by Agency Power®. When adding an Agency Power Racing Downpipe to your turbo car, you will gain more horsepower and overall performance. The downpipe allows for better flow of the turbine...
      Gives your vehicle a serious performance boostPrecision engineered for your vehicle
      $170.00 - $300.00
    • (0 reviews)
      # 93466864
      Subaru WRX 2004, Flex-Joint Stainless Steel Uppipe by AVO®.
      $230.00
    • (0 reviews)
      # 81935433
      Subaru WRX 2004, Bellmouth Catless Down-Pipe by Invidia®. Piping Diameter: 2.99" (76 mm). Do you want to get more power out of your vehicle? Then this superior Invidia product is just for you. Carefully designed for maximum...
      Made to boost the performance of your vehicleExpertly crafted from premium materials
      $278.60 - $294.00
    • (0 reviews)
      # 81935436
      Subaru WRX 2004, Divorced Wastegate Down-Pipe by Invidia®. Piping Diameter: 2.99" (76 mm). Material: Stainless Steel. Do you want to get more power out of your vehicle? Then this superior Invidia product is just for you. Carefully...
      Made to boost the performance of your vehicleExpertly crafted from premium materials
      $308.70 - $540.40
    • (0 reviews)
      # 81935057
      Subaru WRX STI 2.5L 2004, Up-Pipe by Invidia®. Piping Diameter: 1.97" (50 mm). Material: Stainless Steel. Do you want to get more power out of your vehicle? Then this superior Invidia product is just for you. Carefully designed for...
      Made to boost the performance of your vehicleExpertly crafted from premium materials
      $156.10
    • (0 reviews)
      # 82571317
      Subaru WRX 2004, Stainless Steel Up-Pipe by PERRIN Performance®. PERRIN has been known since inception for the quality of Up-Pipe. The Up-Pipe was the first product Perrin ever released and has been a leader in this market ever...
      CNC mandrel bent and precision welded stainless steel tubingSnugly fits the OEM, Aftermarket exhaust manifold outlet and turbo inlet
      $227.70 - $236.70
    • (0 reviews)
      # 61628535
      Subaru WRX / WRX STI 2004, Down-Pipe by Tanabe®. Piping: 80mm.
      $370.50
    • (0 reviews)
      # 84938480
      Subaru WRX 2004, 15mm Polyurethane Exhaust Hangers 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
      $11.02
    • (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)
      # 99035798
      Subaru WRX / WRX STI 2004, Turbo Stud Set by Killer B Motorsport®,5 Pieces.
      $30.00
    • (0 reviews)
      # 114818237
      Subaru WRX 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
      $243.73
    • (0 reviews)
      # 84263750
      Subaru WRX / WRX STI 2.0L 2004, Passenger Side Exhaust Manifold by Dorman®. Finish: Natural. Material: Cast Iron. Exhaust Manifold Inlet Port Shape: Irregular. Flange Bolt Hole Quantity: 0. Flange Stud Hole Quantity: 3. With...
      Cast iron or stainless tubular construction protects against warping and/or crackingLeak-resistant for long-lasting performance
      $77.95
    • (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)
      # 88880500
      Subaru WRX / WRX STI 2004, Federal Catalytic Converter by Bosal®. Converter Configuration: Direct Fit. CARB Compliant: 48-State Legal. If you’re in need of a replacement catalytic converter, you can’t do better than Bosal....
      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
      $145.34 - $290.05
    • (0 reviews)
      # 100278226
      Subaru WRX Engine Family: 4FJXV02.5PGT 2004, ECO CARB Rear Catalytic Converter by Eastern®. Catalytic Series: ECO CARB. Converter Configuration: Direct Fit. Catalytic Converter Format: Main Catalytic Converter. Catalytic Converter...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $90.49
    • (0 reviews)
      # 17569965
      Subaru WRX STI 2.5L 2004, ECO II Front Catalytic Converter by Eastern®. Catalytic Series: ECO II. Converter Configuration: Direct Fit. Catalytic Converter Format: Pre-Catalytic Converter. CARB Compliant: No. Catalytic Converter...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $225.01
    • (0 reviews)
      # 100278013
      Subaru WRX STI 2.5L 2004, ECO II Front Catalytic Converter by Eastern®. Catalytic Series: ECO II. Converter Configuration: Universal Fit. Catalytic Converter Format: Main Catalytic Converter. Inlet Diameter: 2.25". Outlet Diameter:...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $56.54




    Guides & Articles

    • Performance Exhaust Systems
      Here's A "Tip": Exhaust Tips Are An Easy Way To Dress Up Your Tailpipe
      Performance exhaust systems give you improvements in power output, sound levels, and appearance, all in one package. But let's face it: not everyone has the spare change to buy and bolt up one of these kits. So you soldier on with what you have. And that may be a tired-looking exhaust system that is still functional. You've spent all day washing and waxing the vehicle's paint and chrome to perfection, but no degree of elbow grease will make that tailpipe look better.
    • Performance Exhaust Systems
      Are Headers Worth The Performance Improvement?
      Engines have often been compared to air pumps, because the engine that’s most efficient in terms of economy and power is the one that can get air in and out of its cylinders the easiest. That’s why most performance modifications like conical air filters, cold air intake systems, headers, and cat-back exhaust systems are aimed at making the intake and exhaust systems less restrictive. These parts increase the flow of air into the engine and ease the flow of exhaust gas out of the engine. Among these components, headers may be the most difficult to install. In this article, we’ll discuss what headers do, their different types, and how much performance they can add to your car.
    • Performance Exhaust Systems
      Are X-pipes and H-pipes Better Than Straight Pipes on Dual Exhaust Systems?
      You may be wondering why so many aftermarket performance exhaust system manufacturers are offering dual exhaust systems connected by "H-pipe" or "X-pipe" sections. After all, aren't two separate pipes, or so-called "true duals", the best for performance? The answer is no, but to understand why we have to examine how a typical internal combustion engine works.
    • Performance Exhaust Systems
      Power, Sound, Looks | Can I Have It All With a Cat-Back Exhaust System?
      It's an age-old question that many have asked. Will an aftermarket exhaust be worth the expense? While they definitely can be, an important question to ask yourself is do you care more about the deeper sound they’re designed to produce, or the added performance gained from being less restrictive? As car enthusiasts, we’ve become accustomed to associating the sound of a car with its exhaust. After all, doesn’t everyone have a childhood memory or two of a car and the particular sound it made?
    • Bed Accessories
      Pickup Truck Cab And Bed Sizes Are Important When Selecting Accessories
      Americans love to have choices. Buying a dress shirt? Decide solid or stripe, short or long sleeve, cotton or poly blend, button or spread collar, regular fit, slim fit, or big & tall. How about a meal at your favorite steak house? Will it be porterhouse, T-bone, or sirloin? Cooked rare, medium-rare, or medium? With baked, mashed, or French fried potatoes? Thirsty for a fancy cup of coffee? Let's not even get started on options that let you end up with a "grande caramel macchiato with 1% low-fat milk, 2 Splendas, and an extra espresso shot".
    • Replacement Exhaust Parts
      Direct Fit vs. Universal Mufflers
      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 between these two styles so you can make a more informed purchase.

    Popular Products

    2004 Subaru WRX Performance Exhaust Systems Reviews

    Average rating:  4.5  4.5 - 24 reviews
    5 of 5
    Just What I Needed
    As described and at the right price. Easy, fast delivery. A great buy!
    SPosted by Susan (Smith River, CA) /
    Was this review helpful for you? Yes
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