2004 Subaru Outback Performance Exhaust Systems

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    • MagnaFlow® Direct Fit California OBDII Catalytic Converter
      (0 reviews)
      # 62247299
      Subaru Outback 2.5L 2004, Direct Fit California OBDII Catalytic Converter by MagnaFlow®. 2" Tubing Diameter. Includes Gaskets, O2 Sensor Ports. Without Air Tube. If your car needs replacement, install one that will get you through...
      Increases exhaust flow compared to original factory converterIncreased exhaust flow allows your engine to make more power
      $668.99 - $695.43
    • MagnaFlow® Direct Fit Federal Catalytic Converter
      (0 reviews)
      # 61590392
      Subaru Outback 3.0L 2004, Direct Fit Federal Catalytic Converter by MagnaFlow®. 2" Inlet / 2" Outlet Diameter. 13.75" Width. If your car needs replacement, install one that will get you through the smog check and give you more...
      Converter body manufactured from heavy-duty stainless steelIncreases exhaust flow compared to original factory converter
      $435.80 - $518.41
    • MagnaFlow® Direct Fit Federal OEM Grade Catalytic Converter
      (0 reviews)
      # 61590393
      Subaru Outback 2004, Direct Fit Federal 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...
      Converter body manufactured from heavy-duty stainless steelIncreases exhaust flow compared to original factory converter
      $342.64 - $577.26
    • MagnaFlow® Direct Fit Federal Pre-OBDII Catalytic Converter
      (0 reviews)
      # 22212348
      Subaru Outback 2.5L 2004, Direct Fit Federal Pre-OBDII Catalytic Converter by MagnaFlow®. 2" Inlet / 2" Outlet Diameter. 10" Width. 2" Tubing Diameter. Includes Gasket, O2 Sensor Ports. Without Air Tube. If your car needs...
      Converter body manufactured from heavy-duty stainless steelIncreases exhaust flow compared to original factory converter
      $463.05
    • Cometic Gasket® 0.030" MLS Exhaust Head Gasket
      (0 reviews)
      # 61627148
      Subaru Outback 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...
      $39.70
    • Magnum Gasket® Exhaust Manifold Gasket Set
      (0 reviews)
      # 82704683
      Subaru Outback 2.5L 2004, Exhaust Manifold Gasket Set by Magnum Gasket®. Standard. Magnum's Gasket engineers have utilized their many years of engine sealing experience to select the right technology choice for each of the Intake...
      $8.96
    • Walker® CalCat™ Universal Fit Catalytic Converter
      (0 reviews)
      # 87068700
      Subaru Outback 2004, CalCat™ Universal Fit Catalytic Converter by Walker®. Inlet Diameter 1: 2". Inlet / Outlet Quantity: 1 Inlet / 1 Outlet. Walker offers complete coverage: direct-fit mufflers, converters, pipes, resonators and...
      EPA & CARB Emissions Products Available for Most Vehicles5 Year / 50,000 Miles Warranty on Structural Components
      $101.65 - $154.64
    • Walker® Ultra™ Direct Fit Catalytic Converter
      (1 reviews)
      # 8739904
      Subaru Outback with Federal Emission 2004, Ultra™ Direct Fit Catalytic Converter by Walker®. Inlet / Outlet Quantity: 1 Inlet / 1 Outlet. Outlet Connection Type: 2 Bolt Welded Flange. Substrate Material: Ceramic. This catalytic...
      Designed to meet your vehicle’s specific emissions requirementsDirect fit replacement
      $214.13 - $405.98
    • Bosal® Federal Catalytic Converter
      (0 reviews)
      # 20582649
      Subaru Outback 2004, Federal 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...
      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
      $230.27 - $475.38
    • Eastern® ECO II Direct Fit Driver Side Catalytic Converter
      (0 reviews)
      # 17575693
      Subaru Outback 2.5L 2004, ECO II Direct Fit Undercar Driver Side Catalytic Converter by Eastern®. 56.5" Overall Length. Inlet Type 1: 3 Bolt Welded Inlet Flange. Inlet Type 2: 2 Bolt Welded Inlet Flange. Outlet Type 1: 2 Bolt...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $369.68
    • Eastern® ECO III Direct Fit Catalytic Converter
      (0 reviews)
      # 17575711
      Subaru Outback 2004, ECO III Direct Fit Undercar Catalytic Converter by Eastern®. 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
      $229.88 - $331.61
    • Eastern® ECO III Universal Fit Catalytic Converter
      (0 reviews)
      # 73909841
      Subaru Outback 2.5L 2004, ECO III Universal Fit Undercar Catalytic Converter by Eastern®. Whether your catalytic converter is damaged by road debris or failed due to an engine problem, you definitely need a new one, and this...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $71.48 - $86.64
    • Eastern® ECO II Universal Fit Rear Catalytic Converter
      (0 reviews)
      # 17580185
      Subaru Outback 2.5L Over 8500 Lbs GVW 2004, ECO II Universal Fit Undercar Rear Catalytic Converter by Eastern®. 16" Overall Length. Inlet Type 1: 2.5" ID. Outlet Type 1: 2.5" OD. Whether your catalytic converter is damaged by road...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $87.35
    • DEC® Direct Fit Catalytic Converter
      (0 reviews)
      # 86074983
      Subaru Outback 2004, Direct Fit Catalytic Converter by DEC®. Pick out a catalytic converter by DEC and get your emissions back into check without worrying to fail again. These catalytic converters are made from a heavy duty...
      Direct fitMade from a heavy duty stainless steel outer shell
      $277.20 - $417.20
    • Davico® Direct Fit Catalytic Converter
      (0 reviews)
      # 83041621
      Subaru Outback 2004, Direct Fit Catalytic Converter by Davico®. This direct-fit catalytic converter by Davico will be a great solution to replace your failed or damaged catalytic converter. Once your stock cat fails to perform its...
      Helps your vehicle emit harmless gasesDirect OEM replacement
      $240.09 - $524.59
    • Walker® Quiet-Flow™ Stainless Steel Oval Muffler Assembly
      (0 reviews)
      # 8752472
      Subaru Outback 2004, Quiet-Flow™ Stainless Steel Aluminized Oval Muffler Assembly by Walker®. Inlet Diameter 1: 2". Inlet Configuration: Offset. Outlet Diameter: 2". Outlet Configuration: Offset. Inlet / Outlet Quantity: 1 Inlet...
      $67.66 - $116.16
    • Walker® Round Resonator Assembly
      (0 reviews)
      # 17742560
      Subaru Outback 2004, Stainless Steel Aluminized Round Resonator Assembly by Walker®. Inlet / Outlet Quantity: 1 Inlet / 1 Outlet. Inlet Connection Type: 2 Bolt Welded Flange. Outlet Connection Type: 2 Bolt Welded Flange. Body...
      Designed to directly replace the factory partMade with precision benders and fixture checked
      $89.66 - $94.65
    • Walker® SoundFX™ Stainless Steel Oval Direct Fit Muffler
      (0 reviews)
      # 35486351
      Subaru Outback Wagon 2004, SoundFX™ Stainless Steel Aluminized Oval Direct Fit Muffler by Walker®. Inlet Diameter 1: 2". Inlet Configuration: Offset. Outlet Diameter: 2". Outlet Configuration: Offset. Overall Length: 41". Inlet /...
      $52.52
    • Bosal® Muffler
      (0 reviews)
      # 20582653
      Subaru Outback 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
      $93.81 - $122.84
    • Ansa® Muffler
      (0 reviews)
      # 80702180
      Subaru Outback 2004, Muffler by Ansa®. This premium part is essential for completing a professional exhaust installation. The key a well-functioning vehicle is about purchasing only premium quality parts and hardware. ANSA makes...
      Engineered to provide excellent exhaust system managementBuilt to the strict quality standards
      $76.98 - $136.40
    • Walker® Aluminized Front Pipe
      (1 reviews)
      # 46779233
      Subaru Outback 2.5L with Two Converter Bodies 2004, Aluminized Front Pipe by Walker®. Overall Length: 22.5". Inlet / Outlet Quantity: 1 Inlet / 1 Outlet. Inlet Connection Type: 3 Bolt Welded Flange. Outlet Connection Type: 2 Bolt...
      Made of High Qua;lity Aluminized SteelCorrosion Resistant
      $117.53
    • Walker® Insulator
      (0 reviews)
      # 35486347
      Subaru Outback 2004, Insulator by Walker®. Overall Length: 2.5". Inlet / Outlet Quantity: 1 Inlet / 1 Outlet. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with...
      Makes installation quick and easyOptimal OE-style fit and quality
      $4.94
    • Bosal® Rubber Mounting
      (0 reviews)
      # 20554185
      Subaru Outback 2.5L 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
      $7.22
    • Genuine® Exhaust Hanger
      (0 reviews)
      # 44711593
      Subaru Outback 2004, Exhaust Hanger by Genuine®. 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 reasons, but before...
      $49.56
    • Fel-Pro® Exhaust Manifold Gasket Set
      (0 reviews)
      # 40720260
      Subaru Outback 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
      $9.98 - $11.76
    • Walker® Exhaust Gasket
      (1 reviews)
      # 85235531
      Subaru Outback 2004, Exhaust Gasket by Walker®. Inlet / Outlet Quantity: 1 Inlet / 1 Outlet.
      $2.38 - $15.71
    • Bosal® Exhaust Flange Gasket
      (0 reviews)
      # 20582660
      Subaru Outback 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
      $3.16 - $15.18
    • Genuine® Cat Converter Gasket
      (0 reviews)
      # 8798472
      Subaru Outback 2.5L 2004, Cat. Converter Gasket by Genuine®. Position: Front. Note: Exc. California. Is your car noisier these days? Can you smell exhaust fumes in the cabin? Exhaust system repairs should not be put off, both for...
      $13.55
    • Nippon Reinz® Exhaust Manifold Gasket
      (0 reviews)
      # 8720634
      Subaru Outback 2.5L 2004, Exhaust Manifold 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,...
      $12.46
    • Fel-Pro® Left Exhaust Pipe Flange Gasket
      (0 reviews)
      # 40581463
      Subaru Outback 3.0L 2004, Left Exhaust Pipe Flange Gasket by Fel-Pro®. Location: Converter. 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...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      $12.95
    • Victor Reinz® Catalytic Converter Gasket
      (0 reviews)
      # 24207070
      Subaru Outback 2004, Catalytic Converter Gasket by Victor Reinz®, Use 1 per Car. OEM Standard. When you’re low on oil, coolant or some other fluid, you may be tempted to just run down to the local auto parts chain store. But...
      $8.39 - $12.23
    • Victor Reinz® Exhaust Manifold Gasket Set
      (0 reviews)
      # 24041973
      Subaru Outback 2.5L 2004, Exhaust Manifold Gasket Set by Victor Reinz®, Use 1 per Car. OEM Standard. Material: Composite. When you’re low on oil, coolant or some other fluid, you may be tempted to just run down to the local auto...
      $11.02
    • Victor Reinz® Exhaust Pipe Flange Gasket
      (0 reviews)
      # 24207085
      Subaru Outback 2004, Exhaust Pipe Flange Gasket by Victor Reinz®, Use 2 per Car. Exhaust Pipe to Manifold. OEM Standard. When you’re low on oil, coolant or some other fluid, you may be tempted to just run down to the local auto...
      $6.58 - $8.93
    • HJS® Exhaust Gasket
      (0 reviews)
      # 7747770
      Subaru Outback 2.5L 2004, Exhaust Gasket by HJS®. Note: Main Catalyst to Pre-Silencer. 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...
      $13.63
    • Ishino® Exhaust Flange Gasket
      (0 reviews)
      # 8287469
      Subaru Outback 3.0L 2004, Exhaust Flange Gasket by Ishino®. Located between cylinder head and Y-pipe. It could be considered either an exhaust flange gasket or an exhaust manifold gasket. Note: 2 per Engine Located between cylinder...
      $5.02
    • DNJ Engine Components® Exhaust Manifold Gasket Set
      (0 reviews)
      # 81855339
      Subaru Outback 2.5L 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...
      Designed to restore your vehicle's original performanceProvides superior sealing performance
      $8.22
    • Bosal® Exhaust Installation Kit
      (0 reviews)
      # 20553844
      Subaru Outback 2.5L 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...
      Constructed for a hassle-free exhaust repairEnsures a precise fit
      $12.01
    • Ansa® Front Exhaust Pipe
      (0 reviews)
      # 80695603
      Subaru Outback 2.5L 2004, Front Exhaust Pipe by Ansa®. This premium part is essential for completing a professional exhaust installation. The key a well-functioning vehicle is about purchasing only premium quality parts and...
      Engineered to provide excellent exhaust system managementBuilt to the strict quality standards
      $142.04
    • Flowmaster® 200 Series OBDII Round Catalytic Converter
      (2 reviews)
      # 492248
      Universal 200 Series OBDII Stainless Steel Round Catalytic Converter by Flowmaster®. Inlet / Outlet Connection Type: Slip-Fit. Without O2 Sensor Port. The new Flowmaster replacement catalytic converters are made to meet and exceed...
      Exceed all federal emission standardsStainless Steel shells
      $116.53 - $204.95
    • Flowmaster® 220 Series Oval Catalytic Converter
      (5 reviews)
      # 87243712
      Universal 220 Series Stainless Steel Oval Catalytic Converter by Flowmaster®. Inlet / Outlet Connection Type: Slip-Fit. Without O2 Sensor Port. The new Flowmaster replacement catalytic converters are made to meet and exceed all...
      Exceed all federal emission standardsStainless Steel shells
      $68.56
    • Flowmaster® 222 Series Round Catalytic Converter
      (5 reviews)
      # 87243734
      Universal 222 Series Stainless Steel Round Catalytic Converter by Flowmaster®. Inlet / Outlet Connection Type: Slip-Fit. Without O2 Sensor Port. The new Flowmaster replacement catalytic converters are made to meet and exceed all...
      Exceed all federal emission standardsStainless Steel shells
      $67.12
    • Flowmaster® 223 Series Round Catalytic Converter
      (2 reviews)
      # 492138
      Universal 223 Series Stainless Steel Round Catalytic Converter by Flowmaster®. Inlet / Outlet Connection Type: Slip-Fit. Without O2 Sensor Port. The new Flowmaster replacement catalytic converters are made to meet and exceed all...
      Exceed all federal emission standardsStainless Steel shells
      $73.86
    • Flowmaster® 225 Series Oval Catalytic Converter
      (2 reviews)
      # 492154
      Universal 225 Series Stainless Steel Oval Catalytic Converter by Flowmaster®. Inlet / Outlet Connection Type: Slip-Fit. Without O2 Sensor Port. The new Flowmaster replacement catalytic converters are made to meet and exceed all...
      Exceed all federal emission standardsStainless Steel shells
      $68.02 - $71.98
    • Flowmaster® 240 Series Oval Catalytic Converter
      (7 reviews)
      # 87243745
      Universal 240 Series Stainless Steel Oval Catalytic Converter by Flowmaster®. Inlet / Outlet Connection Type: Slip-Fit. Without O2 Sensor Port. The new Flowmaster replacement catalytic converters are made to meet and exceed all...
      Exceed all federal emission standardsStainless Steel shells
      $141.53 - $144.93
    • Flowmaster® 250 Series Oval Catalytic Converter
      (5 reviews)
      # 87243747
      Universal 250 Series Stainless Steel Oval Catalytic Converter by Flowmaster®. Inlet / Outlet Connection Type: Slip-Fit. Without O2 Sensor Port. The new Flowmaster replacement catalytic converters are made to meet and exceed all...
      Exceed all federal emission standardsStainless Steel shells
      $130.99 - $147.34
    • Flowmaster® 260 Series Stainless Steel Oval Catalytic Converter (2600230)
      (5 reviews)
      # mpn886220
      Universal 260 Series Stainless Steel Oval Catalytic Converter without Air Tube by Flowmaster®. 3" Inlet / 3" Outlet Diameter, 21.5" Length. Inlet / Outlet Connection Type: Slip-Fit. Without O2 Sensor Port. The new Flowmaster...
      Exceed all federal emission standardsStainless Steel shells
      $247.74
    • Flowmaster® 282 Series OBDII Catalytic Converter
      (7 reviews)
      # 492281
      Universal 282 Series OBDII Stainless Steel Catalytic Converter by Flowmaster®. The new Flowmaster replacement catalytic converters are made to meet and exceed all federal environmental regulations and, as all Flowmaster products,...
      Exceed all federal emission standardsStainless Steel shells
      $102.20 - $142.92
    • Flowmaster® 283 Series OBDII Round Catalytic Converter
      (2 reviews)
      # 3138250
      Universal 283 Series OBDII Stainless Steel Round Catalytic Converter by Flowmaster®. Inlet / Outlet Connection Type: Slip-Fit. The new Flowmaster replacement catalytic converters are made to meet and exceed all federal...
      Exceed all federal emission standardsStainless Steel shells
      $110.23 - $127.74
    • Flowmaster® 284 Series OBDII Oval Catalytic Converter
      (0 reviews)
      # 87281464
      Universal 284 Series OBDII Stainless Steel Oval Catalytic Converter by Flowmaster®. Inlet / Outlet Connection Type: Slip-Fit. Without O2 Sensor Port. The new Flowmaster replacement catalytic converters are made to meet and exceed...
      Exceed all federal emission standardsStainless Steel shells
      $187.88
    • Flowmaster® 290 Series Oval Catalytic Converter
      (5 reviews)
      # 87243764
      Universal 290 Series Stainless Steel Oval Catalytic Converter by Flowmaster®. Inlet / Outlet Connection Type: Slip-Fit. The new Flowmaster replacement catalytic converters are made to meet and exceed all federal environmental...
      Exceed all federal emission standardsStainless Steel shells
      $108.66 - $128.44
    • Flowmaster® 3512 Series OBDII Stainless Steel Oval Catalytic Converter (3512025)
      (2 reviews)
      # mpn918025
      Universal 3512 Series OBDII Stainless Steel Oval Catalytic Converter without Air Tube by Flowmaster®. 2.5" Inlet / 2.5" Outlet Diameter, 14.25" Length. Inlet / Outlet Connection Type: Clamp-On. The new Flowmaster replacement...
      Exceed all federal emission standardsStainless Steel shells
      $163.39
    • Flowmaster® 3588 Series Pre-OBDII Round Catalytic Converter
      (2 reviews)
      # 23000953
      Universal 3588 Series Pre-OBDII Stainless Steel Round Catalytic Converter by Flowmaster®. Inlet / Outlet Connection Type: Slip-Fit. The new Flowmaster replacement catalytic converters are made to meet and exceed all federal...
      Exceed all federal emission standardsStainless Steel shells
      $197.80
    • Flowmaster® 3589 Series Pre-OBDII Round Catalytic Converter
      (2 reviews)
      # 23000959
      Universal 3589 Series Pre-OBDII Stainless Steel Round Catalytic Converter by Flowmaster®. Inlet / Outlet Connection Type: Slip-Fit. The new Flowmaster replacement catalytic converters are made to meet and exceed all federal...
      Exceed all federal emission standardsStainless Steel shells
      $218.19 - $343.62
    • Flowmaster® 3612 Series OBDII Stainless Steel Oval Catalytic Converter (3612024)
      (2 reviews)
      # mpn918033
      Universal 3612 Series OBDII Stainless Steel Oval Catalytic Converter without Air Tube by Flowmaster®. 2.25" Inlet / 2.25" Outlet Diameter, 12.25" Length. Inlet / Outlet Connection Type: Clamp-On. The new Flowmaster replacement...
      Exceed all federal emission standardsStainless Steel shells
      $185.80
    • Flowmaster® 3612 Series Stainless Steel Oval Catalytic Converter (3612125)
      (2 reviews)
      # mpn918035
      Universal 3612 Series Stainless Steel Oval Catalytic Converter without Air Tube by Flowmaster®. 2.5" Inlet / 2.5" Outlet Diameter, 12.25" Length. Inlet / Outlet Connection Type: Clamp-On. The new Flowmaster replacement catalytic...
      Exceed all federal emission standardsStainless Steel shells
      $146.59
    • Flowmaster® 3910 Series OBDII Stainless Steel Round Catalytic Converter (3910124)
      (2 reviews)
      # mpn918036
      Universal 3910 Series OBDII Stainless Steel Round Catalytic Converter without Air Tube by Flowmaster®. 2.25" Inlet / 2.25" Outlet Diameter, 14.25" Length. Inlet / Outlet Connection Type: Clamp-On. The new Flowmaster replacement...
      Exceed all federal emission standardsStainless Steel shells
      $271.21
    • Flowmaster® 3912 Series OBDII Catalytic Converter
      (2 reviews)
      # 23000943
      Universal 3912 Series OBDII Stainless Steel Catalytic Converter by Flowmaster®. Inlet / Outlet Connection Type: Clamp-On. The new Flowmaster replacement catalytic converters are made to meet and exceed all federal environmental...
      Exceed all federal emission standardsStainless Steel shells
      $215.14 - $269.17
    • Flowmaster® 3932 Series Pre-OBDII Round Catalytic Converter
      (2 reviews)
      # 23000964
      Universal 3932 Series Pre-OBDII Stainless Steel Round Catalytic Converter by Flowmaster®. Inlet / Outlet Connection Type: Slip-Fit. The new Flowmaster replacement catalytic converters are made to meet and exceed all federal...
      Exceed all federal emission standardsStainless Steel shells
      $218.19
    • Flowmaster® 3938 Series Pre-OBDII Stainless Steel Round Catalytic Converter (3938024)
      (2 reviews)
      # mpn918043
      Universal 3938 Series Pre-OBDII Stainless Steel Round Catalytic Converter without Air Tube by Flowmaster®. 2.25" Inlet / 2.25" Outlet Diameter, 13" Length. Inlet / Outlet Connection Type: Clamp-On. The new Flowmaster replacement...
      Exceed all federal emission standardsStainless Steel shells
      $198.83
    • Flowmaster® 3940 Series OBDII Catalytic Converter
      (2 reviews)
      # 23000946
      Universal 3940 Series OBDII Stainless Steel Catalytic Converter by Flowmaster®. Inlet / Outlet Connection Type: Clamp-On. The new Flowmaster replacement catalytic converters are made to meet and exceed all federal environmental...
      Exceed all federal emission standardsStainless Steel shells
      $229.41 - $294.68




    Guides & Articles

    • Performance Parts
      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 Parts
      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 Parts
      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?
    • Performance Parts
      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 Outback Performance Exhaust Systems Reviews

    Average rating:  4.5  4.5 - 77 reviews
    4 of 5
    Supper Cool Sound!
    I bought this for my Mitsubishi and it sounds awesome! It's got a 3.5 l v6 and it makes it sound like its very souped up! And almost like it has a v8 in it. I couldn't be more happy with this product the sound will blow your mind on whatever you choose to put it on whether it be a six cylinder like I put it on or a v8 very much recommend this product if you want a really nearly sound.
    SPosted by Shawn (Shakopee, MN) /
    Was this review helpful for you? Yes
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