2011 Subaru WRX Performance Exhaust Systems

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    • (0 reviews)
      # 49218662
      Subaru WRX / WRX STI 2.5L Sedan 2011, Competition Series Stainless Steel Cat-Back Exhaust System with Tips by MagnaFlow®. Tip Material: Stainless. Muffler Sound: AGGRESSIVE. Exit Location: Quad Split Rear Exit. Exit Quantity: Quad....
      Aggressive SoundDelivers More Horsepower
      $894.67
    • (1 review)
      # 99143618
      Subaru WRX 2.5L 2011, Street Series Stainless Steel Cat-Back Exhaust System by MagnaFlow®. Tip Material: Stainless. Muffler Sound: MODERATE. Exit Location: Quad Split Rear Exit. Exit Quantity: Quad. Finish: Stainless. Exhaust Inlet...
      Moderate SoundDelivers More Horsepower
      $755.97 - $849.92
    • (0 reviews)
      # 58887565
      Subaru WRX / WRX STI Base 2.5L Sedan 2011, ATAK™ Stainless Steel Single Cat-Back Exhaust System by Borla®. Muffler Sound: AGGRESSIVE. Muffler Series: ATAK™. System Type: Cat-Back. Exit Location: Dual Split Rear Exit. Exit...
      Super Aggressive SoundHorsepower and Torque Increased by 7 – 10%
      $946.99
    • (0 reviews)
      # 61459713
      Subaru WRX STI 2.5L Wagon 2011, S-Type™ Stainless Steel Single Cat-Back Exhaust System by Borla®. Muffler Sound: AGGRESSIVE. Muffler Series: S-Type™. System Type: Cat-Back. Exit Location: Dual Split Rear Exit. Exit...
      Aggressive Plus SoundIncreased exhaust flow for better performance
      $899.99
    • (0 reviews)
      # 45867796
      Subaru WRX 2011, Sport Stainless Steel Cat-Back Exhaust System with Tips by Corsa®. Muffler Sound: AGGRESSIVE. Muffler Body Material: 304 SS. Muffler Body Finish: Brushed Satin. Muffler Body Shape: Oval. Muffler Type: Inner Core...
      Robust and Bold Performance SoundNo Drone at Touring Speeds
      $1,136.99 - $1,413.00
    • (0 reviews)
      # 70194059
      Subaru WRX STI Base Sedan 2011, ES Premium Series 304 SS Exhaust System by HKS®. Sound (Close): L88/R88 dB. Sound (Idle): L71/R70 dB. Tubing: 2.6". Tip Style: ESP. Tip Size: 4.5". End of the silencer has difuser shape that will...
      Sports & Elegant is the concept and products are designed to match with rear section of each vehicle.The compact silencer has sporty looking and the thick tip has elegant and premium appearance.
      $1,466.15
    • (0 reviews)
      # 97200247
      Subaru WRX Base Wagon With GRF Chassis Exclude Spec C 2011, Hi-Power Spec-L Series 304 SS Exhaust Sysrem by HKS®. Sound (Close): 90 dB. Sound (Idle): 71 dB. Weight: 9.4 kg. Tubing: 2.6"-2" x 2. Tip Style: HP (Carbon). Tip Size:...
      Upgrades both the horsepower and sound of your vehicleMade from premium quality materials
      $991.20
    • (0 reviews)
      # 70195937
      Subaru WRX 2011, Legamax Series 304 SS Exhaust System by HKS®. Professionally developed with a racer in mind, this HKS exhaust system provides an easy opportunity to upgrade both the horsepower and sound of your precious vehicle....
      Upgrades both the horsepower and sound of your vehicleMade from premium quality materials
      $783.87 - $1,486.80
    • (0 reviews)
      # 97200656
      Subaru WRX Base 2011, Super Turbo Series 304 SS Exhaust System by HKS®. Tubing: 3"-2.4" x 2. Tip Style: SSR. Tip Size: 4.9". Professionally developed with a racer in mind, this HKS exhaust system provides an easy opportunity to...
      Effective on stock to high performance vehicles w/ upgraded turbines.The performance exhaust sound meets the JASMA standard.
      $1,569.40
    • (1 review)
      # 379161
      Subaru WRX / WRX STI Base 2.5L 2011, Stainless Steel Axle-Back Exhaust System by Injen®. HP Gain: +18.1 hp. Torque Gain: +19.1 lbs. x ft. Includes: Quad Titanium Tips. Main Piping Diameter: 70mm. The perfect complement to your...
      Increases horsepower and torqueManufactured from 100% 304 stainless steel
      $849.15
    • (0 reviews)
      # 94683430
      Subaru WRX Base 2011, Cat-Back Exhaust System by Agency Power®. The Cat-Back is designed for customers seeking increased performance and better economy, combined with a powerful and well tuned exhaust note, making a real statement...
      Suitable for Everyday DrivingIncreases Power
      $700.00 - $1,000.00
    • (0 reviews)
      # 15847518
      Subaru WRX Base Wagon 2011, System Type: Cat-Back. Exhaust System with Titanium Tip Tip Type: Titanium Tip by Agency Power®. The Cat-Back is designed for customers seeking increased performance and better economy, combined with a...
      Suitable for Everyday DrivingIncreases Power
      $750.00
    • (0 reviews)
      # 19266358
      Subaru WRX Wagon 2011, 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
      $538.50
    • (0 reviews)
      # 85544158
      Subaru WRX STI 2011, N1 Style 304 SS Cat-Back Exhaust System with Tip by Spec-D®. Exhaust Type: Cat-Back. Exhaust Pipe Material: Stainless Steel. Exhaust Type: Cat-Back. Series: N1 Style. Muffler Inlet Diameter: 3". Muffler...
      Made of high quality T-304 stainless steelMaximum performance which increases up to 15 horsepower
      $551.80 - $623.00
    • (0 reviews)
      # 71665849
      Subaru WRX Sedan 2011, Evolution GT™ 304 SS Cat-Back Exhaust System by GReddy®. The EVOlution GT for the (GV) Subaru Sedan features dual angled Evo mufflers and quad staggered tips for a stylish and aggressive layout. Larger 76mm...
      Retains unique Evolution off-set tip styling, while improving internal constructionHand TIG-weld 304 Stainless Steel
      $1,040.25
    • (0 reviews)
      # 85618714
      Subaru WRX STI 2011, Supreme SP™ 304 SS Cat-Back Exhaust System by GReddy®. The legacy of the GReddy SP lives on with GReddy’s best version yet, the Supreme SP and to prove it carries a limited lifetime warranty! From the 1st...
      More refine exhaust note; inside and outHand TIG-weld 304 Stainless Steel
      $945.25 - $1,135.25
    • (0 reviews)
      # 79118436
      Subaru WRX STI Wagon 2011, Hybrid Mega Evo 304 SS Axle-Back Exhaust System by APEXi®. Tubing Diameter: 2.5". Exhaust Material: Stainless Steel. Rear Section Only. The Hybrid Megaphone Evolution is a complete stainless steel exhaust...
      All SUS304 stainless steel specification makes the exhaust system high qualityAll TIG welded. High quality and durability
      $832.74
    • (0 reviews)
      # 132243437
      Subaru WRX 2011, 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 Through....
      Ideal for the daily driver car of an enthusiastMade from high-quality materials
      $834.14 - $849.14
    • (0 reviews)
      # 132243434
      Subaru WRX / WRX STI Wagon 2011, RS Evo Exhaust System by APEXi®. Tubing Diameter: 2.75". The RS Evolution Muffler is a hybrid muffler uniting the power and free-flowing characteristics of our N1 Muffler with the quiet and discreet...
      Matched and manufactured for select chassisHigh-level of quality using tig-welded SUS304 stainless steel uniting quiet performance with high-power performance gains
      $1,076.84 - $1,152.74
    • (0 reviews)
      # 116983688
      Subaru WRX / WRX STI 2011, 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)
      # 116983691
      Subaru WRX 2011, 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 - $727.30
    • (0 reviews)
      # 116983700
      Subaru WRX 2011, N1 Racing Stainless Steel 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...
      Made to boost the performance of your vehicleExpertly crafted from premium materials
      $540.40
    • (0 reviews)
      # 81935472
      Subaru WRX 2011, Q300 Stainless Steel Cat-Back Exhaust System by Invidia®. Piping Diameter: 2.99" (76 mm). Tip Outlet Diameter: 4.33" (110 mm). Material: Stainless Steel. The flat bottom shaped muffler design results in improved...
      SUS304 polished stainless steel pipingMandrel bent to shape
      $648.20 - $1,026.90
    • (0 reviews)
      # 140491782
      Subaru WRX 2011, 304 SS Axle-Back Exhaust System by PERRIN Performance®. Tubing: 3". Give your vehicle a major performance overhaul with the PERRIN axle-back exhaust. It's designed to improve the flow of exhaust from your vehicle's...
      Provide uninterrupted exhaust flowYields higher airflow and performance
      $427.50 - $747.00
    • (1 review)
      # 73694089
      Subaru WRX 2011, 304 SS Cat-Back Exhaust System by PERRIN Performance®. Tubing: 3". Move up to a powerful performance exhaust system with PERRIN. This top of the line exhaust system delivers not only aggressive throaty growl and...
      High tech V-band clamps for a perfect exhaust connectionMade of 304 stainless steel for excellent corrosion resistance
      $981.00 - $1,161.00
    • (0 reviews)
      # 1221560
      Subaru WRX / WRX STI Sedan / Wagon 2011, 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...
      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)
      # 114340338
      Subaru WRX / WRX STI 2011, 304 SS Turbo Exhaust Manifold by HKS®. You can have the great performance and great muffler sound of the isometric layout by changing exhaust manifold only with the stock oil pan layout. You will notice...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $612.07 - $1,205.72
    • (0 reviews)
      # 140490567
      Subaru WRX Base 2011, 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 temperatures...
      $437.99
    • (0 reviews)
      # 81935395
      Subaru WRX / WRX STI 2.5L 2011, 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...
      Made to boost the performance of your vehicleExpertly crafted from premium materials
      $1,083.60
    • (0 reviews)
      # 82182450
      Subaru WRX / WRX STI 2.5L 2011, 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 2011, 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)
      # 84938654
      Subaru WRX / WRX STI 2011, 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...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $900.00 - $981.00
    • (0 reviews)
      # 91021403
      Subaru WRX 2011, 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 2011, 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)
      # 70194046
      Subaru WRX / WRX STI 2011, 304 SS 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
      $437.78
    • (0 reviews)
      # 70194053
      Subaru WRX STI 2011, Legamax Center Pipe by HKS®. Pipe Size: 2.6". This product is made from materials of the highest possible quality to ensure exceptional durability to withstand the most severe conditions and serve you for years...
      Provides the passageway for exhaust gas which originates at the cylinder head and exits at the tail pipeMade from premium quality materials
      $425.39
    • (0 reviews)
      # 70193932
      Subaru WRX / WRX STI 2011, 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)
      # 379187
      Subaru WRX / WRX STI Base 2.5L 2011, Downpipe by Injen®. HP Gain: +24.6 hp. Torque Gain: +11.2 lbs. x ft. Eliminate restriction and maximize exhaust flow with this quality stainless steel downpipe.
      $344.25 - $455.18
    • (0 reviews)
      # 94683412
      Subaru WRX STI Base 2011, Pipe Material: Stainless Steel. 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...
      Gives your vehicle a serious performance boostPrecision engineered for your vehicle
      $170.00 - $350.00
    • (0 reviews)
      # 11019491
      Subaru WRX / WRX STI Sedan / Wagon 2011, Polished 304 SS Turbocharger Downpipe by DC Sports®. DC Sports competition pipes delete the catalytic to eliminate restriction in the exhaust path and are dyno tuned to deliver incredible...
      Dyno tuned to deliver incredible performance gains for your factory turbocharged vehicleWorks with the factory turbocharger with no modifications
      $318.32
    • (0 reviews)
      # 116983684
      Subaru WRX / WRX STI 2011, 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....
      Made to boost the performance of your vehicleExpertly crafted from premium materials
      $323.40 - $555.10
    • (0 reviews)
      # 116983707
      Subaru WRX / WRX STI 2011, Up-Pipe by Invidia®. 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 maximum performance, is will...
      Made to boost the performance of your vehicleExpertly crafted from premium materials
      $156.10
    • (0 reviews)
      # 84938673
      Subaru WRX / WRX STI 2.5L 2011, 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...
      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)
      # 73693009
      Subaru WRX / WRX STI 2011, 12mm 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...
      Help keep your exhaust system securely placedMade from polyurethane that is resistant to high and low temperatures
      $11.02
    • (0 reviews)
      # 62403645
      Subaru WRX / WRX STI 2011, Exhaust Mount by Torque Solution®. Size: 12mm. Our exhaust mounts will reduce exhaust movement and vibrations both under extreme racing conditions and daily street driving. Great compliment to any exhaust...
      Eliminates Exhaust MovementMade from High Grade Polyurethane
      $11.34 - $13.86
    • (0 reviews)
      # 61627148
      Subaru WRX / WRX STI 2011, 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)
      # 116551717
      Subaru WRX / WRX STI 2.5L 2011, Exhaust 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...
      Made of High Quality MaterialsThe best combination of steel layers and high-temp gasket materials
      $8.96
    • (0 reviews)
      # 99035798
      Subaru WRX / WRX STI 2011, Turbo Stud Set by Killer B Motorsport®,5 Pieces.
      $30.00
    • (0 reviews)
      # 165561579
      Subaru WRX 2.5L 2011, Replacement Exhaust Kit by AP Exhaust®. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. Converter Configuration: Direct Fit. Outlet Type One: 2 Bolt Welded Flange....
      Superior replacement for your worn out exhaust partHelps put your vehicle back to its tip-top shape
      $252.01 - $268.66
    • (0 reviews)
      # 84263750
      Subaru WRX 2011, 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 Installation...
      Cast iron or stainless tubular construction protects against warping and/or crackingLeak-resistant for long-lasting performance
      $77.95
    • (0 reviews)
      # 38848824
      Subaru WRX STI Base 2.5L 2011, ECO II Front Catalytic Converter by Eastern®. Catalytic Series: ECO II. Converter Configuration: Direct Fit. Catalytic Converter Format: Main Catalytic Converter. CARB Compliant: No. Catalytic...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $254.70
    • (0 reviews)
      # 111781676
      Subaru WRX 2011, ECO III Rear Catalytic Converter by Eastern®. Catalytic Series: ECO III. Converter Configuration: Direct Fit. Catalytic Converter Format: Main Catalytic Converter. Catalytic Converter Oxygen Sensor Location: Rear....
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $248.20
    • (0 reviews)
      # 100278279
      Subaru WRX 2011, ECO III Rear Catalytic Converter by Eastern®. Catalytic Series: ECO III. Converter Configuration: Universal Fit. Catalytic Converter Format: Main Catalytic Converter. Inlet Diameter: 2.25". Outlet Diameter: 2.25"....
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $71.48
    • (0 reviews)
      # 140268018
      Subaru WRX / WRX STI 2.5L 2011, Front Catalytic Converter by DEC®. Location: Front. CARB Compliant: No. Converter Configuration: Direct Fit. Pick out a catalytic converter by DEC and get your emissions back into check without...
      Direct fitMade from a heavy duty stainless steel outer shell
      $292.60
    • (0 reviews)
      # 140268016
      Subaru WRX / WRX STI 2.5L 2011, Rear Catalytic Converter and Pipe Assembly by DEC®. Location: Rear. CARB Compliant: No. Converter Configuration: Direct Fit. Pick out a catalytic converter by DEC and get your emissions back into...
      Direct fitMade from a heavy duty stainless steel outer shell
      $212.40
    • (0 reviews)
      # 165561550
      Subaru WRX 2.5L 2011, Catalytic Converter by AP Exhaust®. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. Converter Configuration: Direct Fit. Outlet Type One: 2 Bolt Welded Flange. CARB...
      Manufactured from high quality materialsDesign meet needs of OBDII equipped vehicles
      $252.01 - $268.66
    • (0 reviews)
      # 8714319
      Subaru WRX / WRX STI 2011, 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)
      # 19063994
      Subaru WRX / WRX STI 2458 CC 2011, 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...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      $11.92
    • (0 reviews)
      # 35813805
      Subaru WRX / WRX STI 2.5L 2011, 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...
      OE quality products from top original equipmentTop quality materials
      $13.22
    • (0 reviews)
      # 81855339
      Subaru WRX 2458 CC 2011 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
      $7.40




    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

    2011 Subaru WRX Performance Exhaust Systems Reviews

    Average rating:  5  5 - 2 reviews
    5 of 5
    Perrin Cat-Back Exhaust High Quality
    This Cat-Back Exhaust is a must have upgrade for your WRX or STI. From the moment I opened the box I was impressed how carefully each piece was protected to avoid damage during shipping. I have a vast experience with different brands of exhaust, so I can easily spot products that were poorly made. But this one was an example of great craftsmanship. The Perrin Performance Cat-Back Exhaust is by far the highest quality exhaust I’ve had. The exhaust has V-band clamps to achieve tight exhaust connection. The V-band clamps can withstand much pressure and do so without the need for a gasket. This was my first time using V-band clamps and I was really satisfied with it.
    APosted by Adam (Carriere, MS) /
    2011 Subaru WRX
    Was this review helpful for you? Yes
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