2003 Subaru WRX Performance Exhaust Systems

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    • (0 reviews)
      # 35201457
      Subaru WRX / WRX STI 2003, Street Series™ Stainless Steel Cat-Back Exhaust System by MagnaFlow®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Exhaust System Sound: Moderate. The Street Series is designed for...
      $641.28 - $641.32
    • (0 reviews)
      # 317064219
      Subaru WRX / WRX STI With LEV Specification / With LEV1 Specification 2003, OBDII Catalytic Converter by MagnaFlow®. Emissions: CARB compliant. Converter Configuration: Direct Fit. Without Air Tube. Catalytic Inlet Diameter: 2.5"....
      $457.73 - $631.38
    • (0 reviews)
      # 81935427
      Subaru WRX 2003, N1™ Stainless Steel Cat-Back Exhaust System by Invidia®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 3". Exhaust System Sound: Moderate. For a good balance of price and...
      $617.40
    • (0 reviews)
      # mpn469959271
      Subaru WRX 2003, Sport Series™ 409 SS Exhaust System by HKS®. Exhaust Tubing Material: 409 SS. Main Tubing Diameter: 3". Exhaust System Sound: Moderate. Professionally developed with a racer in mind, this HKS exhaust system provides...
      $497.09
    • (0 reviews)
      # mpn1979424
      Subaru WRX 2003, N-II™ 304 SS Cat-Back Exhaust System by ARK Performance®. Exhaust Type: Cat-Back. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 3". Exhaust System Sound: Aggressive / Loud. The ARK N-II cat-back exhaust...
      $1,112.65
    • (0 reviews)
      # 50386767
      Subaru WRX 2003, Touring™ Stainless Steel Cat-Back Exhaust System by Borla®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 3". Exhaust System Sound: Mild / Stock. When you want the best...
      $709.99
    • (1 review)
      # mpn1724473440
      Subaru WRX / WRX STI 2003, Full Titanium Racing Cat-Back Exhaust System by Invidia®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Full Titanium. Main Tubing Diameter: 3.15". Exhaust System Sound: Aggressive / Loud. Bended forming,...
      $1,330.00
    • (0 reviews)
      # mpn457857296
      Subaru WRX 2003, G200™ Stainless Steel Cat-Back Exhaust System by Invidia®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 3". Exhaust System Sound: Moderate. If performance is what you are...
      $679.70
    • (0 reviews)
      # 81935430
      Subaru WRX 2003, N1™ Stainless Steel Racing Cat-Back Exhaust System by Invidia®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 3". Exhaust System Sound: Moderate. For a good balance of price...
      $540.40
    • (0 reviews)
      # mpn457857297
      Subaru WRX 2003, Q300™ Stainless Steel Cat-Back Exhaust System by Invidia®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 3". Exhaust System Sound: Moderate. The flat bottom shaped muffler...
      $648.20
    • (0 reviews)
      # mpn469959454
      Subaru WRX / WRX STI 2003, Carbon-Ti Series™ 304 SS Cat-Back Exhaust System by HKS®. Exhaust Type: Cat-Back. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 3". Exhaust System Sound: Aggressive / Loud. Professionally developed...
      $760.52
    • (0 reviews)
      # mpn469959449
      Subaru WRX / WRX STI 2003, Hi-Power Series™ 304 SS Cat-Back Exhaust System by HKS®. Exhaust Type: Cat-Back. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 3". Exhaust System Sound: Aggressive / Loud. Professionally developed...
      $462.54
    • (0 reviews)
      # mpn2564309
      Subaru WRX STI 2003, Cat-Back Exhaust System by Agency Power®. Exhaust Type: Cat-Back. Exhaust System Sound: Aggressive / Loud. The Cat-Back is designed for customers seeking increased performance and better economy, combined with a...
      $800.00
    • (0 reviews)
      # 707028353
      Subaru WRX 2003, Stainless Steel Exhaust System by Torxe®. Exhaust Tubing Material: Stainless Steel. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with...
      $175.00 - $326.25
    • (0 reviews)
      # mpn2321857
      Subaru WRX 2003, Single Canister™ 304 SS Cat-Back Exhaust System by DC Sports®. Exhaust Type: Cat-Back. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 3". Exhaust System Sound: Aggressive / Loud. DC Sports exhaust systems are...
      $517.27
    • (0 reviews)
      # 78253589
      Subaru WRX / WRX STI 2003, N1 Style™ 304 SS Cat-Back Exhaust System by Spec-D®. Exhaust Type: Cat-Back. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 3". Exhaust System Sound: Moderate. Make whatever you drive run and sound...
      $154.33 - $163.40
    • (0 reviews)
      # mpn4208835074
      Subaru WRX GD Body Code 2003, Revolution RS™ 304 SS Cat-Back Exhaust System by GReddy®. Exhaust Type: Cat-Back. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 3". Exhaust System Sound: Aggressive / Loud. GReddy Revolution RS...
      $589.00
    • (0 reviews)
      # mpn470412087
      Subaru WRX Wagon 2003, N1 Evo-R™ 304 SS Single Cat-Back Exhaust System by APEXi®. Exhaust Type: Cat-Back. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 3". Exhaust System Sound: Moderate. The N1 series muffler has become a...
      $564.68
    • (0 reviews)
      # mpn470411760
      Subaru WRX Wagon 2003, NOIR™ Mild Steel Cat-Back Exhaust System by APEXi®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Mild Steel. Main Tubing Diameter: 3". Exhaust System Sound: Moderate. The NOIR Muffler was developed...
      $610.88
    • (0 reviews)
      # mpn470411790
      Subaru WRX Wagon 2003, WS2 Mild Steel Single Cat-Back Exhaust System by APEXi®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Mild Steel. Main Tubing Diameter: 2.5". Exhaust System Sound: Moderate. The WS Exhaust series is the A'PEX...
      $650.01
    • (0 reviews)
      # mpn461609140
      Subaru WRX 2003, 304 SS Cat-Back Exhaust System by PERRIN Performance®. Exhaust Type: Cat-Back. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 3". Exhaust System Sound: Moderate. PERRIN Performance mufflers have a true 3"...
      $607.50
    • (0 reviews)
      # mpn458196762
      Subaru WRX Sedan 2003, Medalion Touring™ Stainless Steel Cat-Back Exhaust System by Tanabe®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 3.15". Exhaust System Sound: Moderate. The elegant,...
      $693.50
    • (0 reviews)
      # mpn470567115
      Subaru WRX 2003, Pro Spec™ Stainless Steel Cat-Back Exhaust System by Buddy Club®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 3". Exhaust System Sound: Aggressive / Loud. Based off the same...
      $700.00
    • (0 reviews)
      # mpn1953799
      Subaru WRX 2003, Stainless Steel Exhaust Header by Borla®. Primary Tubing Diameter: 1.63". Collector Outlet Diameter: 2.25". Emissions: EPA compliant. Color: Silver. Header Coating: Uncoated. Header Style: Long Tube. 304 stainless steel...
      $659.99
    • (0 reviews)
      # mpn1156302
      Subaru WRX / WRX STI 2003, OEM Grade Front Stainless Steel Exhaust Manifold with Integrated Catalytic Converter by MagnaFlow®. Position: Front. Primary Tubing Diameter: 2.5". Collector Outlet Diameter: 2.5". Emissions: EPA compliant....
      $583.50
    • (0 reviews)
      # 346420167
      Subaru WRX STI 2003, Exhaust Header 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 purpose of...
      Increases horsepower and torqueManufactured from 304 stainless steel
      $600.00 - $700.00
    • (0 reviews)
      # mpn2268380051
      Subaru WRX / WRX STI 2003, 304 SS Exhaust Manifold by DC Sports®. Primary Tubing Diameter: 1.75". Collector Outlet Diameter: 2". Emissions: EPA compliant. Color: Silver. Header Coating: Uncoated. DC Sports Turbo Manifolds are the...
      $437.99
    • (0 reviews)
      # 84938458
      Subaru WRX 2003, Equal Length Exhaust Header by PERRIN Performance®. Emissions: EPA compliant. Color: Gray. Header Coating: Uncoated.
      $972.00 - $981.00
    • (0 reviews)
      # 57879893
      Subaru WRX 2003, Heavy Metal Catalytic Converter by MagnaFlow®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2.5". Catalytic Outlet Diameter: 2.5"....
      $100.27 - $105.95
    • (0 reviews)
      # 317064233
      Subaru WRX / WRX STI With LEV Specification / With LEV1 Specification 2003, OBDII Catalytic Converter by MagnaFlow®. Emissions: CARB compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without Air...
      $179.02 - $189.69
    • (0 reviews)
      # 57879890
      Subaru WRX 2003, OEM Grade Catalytic Converter by MagnaFlow®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2.5". Catalytic Outlet Diameter: 2.5"....
      $119.49 - $122.43
    • (0 reviews)
      # 81935421
      Subaru WRX 2003, 304 SS Bellmouth Non-Catted Downpipe by Invidia®. Material: 304 SS. Main 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...
      Made to boost the performance of your vehicleExpertly crafted from premium materials
      $278.60 - $294.00
    • (0 reviews)
      # 81935424
      Subaru WRX 2003, Stainless Steel Downpipe by Invidia®. Material: Stainless Steel. Main 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...
      Made to boost the performance of your vehicleExpertly crafted from premium materials
      $308.70 - $540.40
    • (0 reviews)
      # 70195858
      Subaru WRX 2003, Off-Road Downpipe by HKS®. Reduction of secondary exhaust gas back pressure will improve response of turbocharger. EJ engines' common problem of knocking due to high exhaust gas pressure can be solved. Thus, it is...
      Provides the passageway for exhaust gas which originates at the cylinder head and exits at the tail pipeMade from premium quality materials
      $134.80 - $336.16
    • (0 reviews)
      # mpn469959706
      Subaru WRX / WRX STI 2003, Stainless Steel Polished Up Pipe by HKS®. Material: Stainless Steel. Main Piping Diameter: 1.77". This product is made from materials of the highest possible quality to ensure exceptional durability to...
      Provides the passageway for exhaust gas which originates at the cylinder head and exits at the tail pipeMade from premium quality materials
      $168.50
    • (0 reviews)
      # mpn4478920876
      Subaru WRX / WRX STI 2003, Stainless Steel Downpipe by Megan Racing®. Material: Stainless Steel. Megan Racing Stainless Steel Down-pipes are made of the same high-quality T-304 that is utilized in Megan Racing Headers and Turbo...
      Version 2 includes thicker gauge steel piping and a new and improved finish and quality100% T-304 Stainless Steel with computerized mandrel-bends
      $161.55
    • (0 reviews)
      # mpn2564548
      Subaru WRX STI 2003, 304 SS Up Pipe by Agency Power®. Material: 304 SS. 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...
      Gives your vehicle a serious performance boostPrecision engineered for your vehicle
      $170.00
    • (0 reviews)
      # 379190
      Subaru WRX 2003, Downpipe by Injen®. Eliminate restriction and maximize exhaust flow with this quality stainless steel downpipe.
      $374.21 - $544.74
    • (0 reviews)
      # mpn2831856645
      Subaru WRX / WRX STI 2003, Racing Stainless Steel Downpipe by Spec-D®. Material: Stainless Steel. Make whatever you drive run and sound like a high-performance machine with a Spec-D Exhaust System. The Spec-D system replaces your...
      Dramatically improved exhaust flow compared to restrictive stock systemImproved engine breathing enables increased power output for better performance
      $114.38
    • (0 reviews)
      # mpn457852243
      Subaru WRX 2003, Stainless Steel Flex Joint Up Pipe by AVO®. Material: Stainless Steel. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in...
      High quality at an affordable priceExpertly made from premium materials
      $230.00
    • (0 reviews)
      # mpn461609547
      Subaru WRX 2003, Rotated Turbo Downpipe by PERRIN Performance®. Designed utilizing the latest technology, this product by PERRIN features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle,...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $585.00
    • (0 reviews)
      # mpn461609549
      Subaru WRX 2003, Rotated Turbo Downpipe and Up Pipe Kit by PERRIN Performance®. Designed utilizing the latest technology, this product by PERRIN features premium quality and will perform better than advertised. Perfect for your vehicle...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $918.00
    • (0 reviews)
      # mpn461609546
      Subaru WRX 2003, Rotated Turbo Up Pipe by PERRIN Performance®. Designed utilizing the latest technology, this product by PERRIN features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $342.00
    • (0 reviews)
      # 82571313
      Subaru WRX 2003, 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 since. Up-Pipe is one of...
      CNC mandrel bent and precision welded stainless steel tubingSnugly fits the OEM exhaust manifold outlet and OEM turbo inlet
      $148.50 - $236.70
    • (0 reviews)
      # mpn470412097
      Subaru WRX / WRX STI 2003, Rubber Muffler Hangers by APEXi®. A'PEXi muffler hangers are constructed of an Ethylene Propylene Rubber (EPM) material which is resilient against heat, aging, and wear and tear. The hangers offer the best in...
      Ideal for the daily driver car of an enthusiastMade from high-quality materials
      $18.18
    • (0 reviews)
      # mpn458193544
      Subaru WRX / WRX STI 2003, Exhaust Mount by Torque Solution®. Torque Solution® 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
      $39.84
    • (0 reviews)
      # mpn461608994
      Subaru WRX 2003, 15mm Polyurethane Exhaust Hanger by PERRIN Performance®. Sold individually. 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
      $11.03
    • (0 reviews)
      # mpn461609134
      Subaru WRX 2003, Downpipe Thermal Blanket by PERRIN Performance®. PERRIN Thermal Blankets will improve response while lowering under hood temperatures. Thermal losses from headers, uppipes, turbine housings, and downpipes, cool exhaust...
      Improves power while lowering under hood temperaturesEnsures a precise fit to protect under hood components from heat
      $202.50
    • (0 reviews)
      # mpn458181552
      Subaru WRX 2003, Multi-Layer Steel Exhaust Header Gasket by Cometic Gasket®. Material: Multi-Layer Steel. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of...
      Made of High Quality MaterialsBuilt to Last
      $33.03
    • (0 reviews)
      # 622936765
      Subaru WRX / WRX STI 2003, Graphite Exhaust Manifold Gasket by Remflex®. Material: Graphite. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in...
      $11.97 - $19.45
    • (0 reviews)
      # 551060284
      Subaru WRX 2003, Replacement Exhaust Kit by Ansa®. If you're in need of a durable and efficient replacement exhaust part, rely on this OE-quality product from Ansa that provides both perfect fit and superior functionality for years to...
      Completely compatible with your OE-unitFactory design to ensure a perfect fit
      $231.25
    • (0 reviews)
      # 114818225
      Subaru WRX 2003, Replacement Exhaust Kit by Walker®. Emissions: EPA compliant. 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...
      Direct fit replacementIncludes all applicable flanges, hangers, and sensor fittings
      $70.94 - $256.32
    • (0 reviews)
      # 550925787
      Subaru WRX 2003, Replacement Exhaust Kit by Bosal®. Get confidence with this high-standard OE quality purchase which is perfect for those who want to perform a long-lasting exhaust system repair. Made from top-notch materials, this...
      Superior replacement for your worn out exhaust partHelps put your vehicle back to its tip-top shape
      $64.76 - $302.72
    • (0 reviews)
      # 368077135
      Subaru WRX 2003, Ultra™ Catalytic Converter by Walker®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Small Oval. With 1 Inlet. Without Air Tube. The Right converter, the Right...
      $70.94 - $89.79
    • (0 reviews)
      # 88880500
      Subaru WRX With Federal Emission 2003, Catalytic Converter by Bosal®. Emissions: EPA compliant. Converter Configuration: Direct Fit. If you’re in need of a replacement catalytic converter, you can’t do better than Bosal. They’re a...
      $143.96 - $302.72
    • (0 reviews)
      # 517530856
      Subaru WRX / WRX STI 2003, Catalytic Converter by DEC®. Converter Configuration: Direct Fit. Pick out a catalytic converter by DEC and get your emissions back into check without worrying to fail again. These catalytic converters are...
      $205.63 - $369.85
    • (0 reviews)
      # 545990293
      Subaru WRX 2003, Catalytic Converter by Davico®. Emissions: EPA compliant. Converter Configuration: Direct Fit. This direct-fit catalytic converter by Davico will be a great solution to replace your failed or damaged catalytic...
      $229.14 - $303.09
    • (0 reviews)
      # mpn1897289
      Subaru WRX / WRX STI 2003, Quiet-Flow™ Aluminized Steel Round Exhaust Muffler Assembly by Walker®. Muffler Inlet Diameter: 2". Muffler Outlet Diameter: 2". Muffler Body Length: 15.5". Muffler Overall Length: 46". Muffler...
      Designed for OE equivalent sound and precision fitSpun-locked heads for a proper resistance to backfire
      $256.32
    • (0 reviews)
      # mpn1569133460
      Subaru WRX / WRX STI 2003, Rear Exhaust 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,...
      Aluminized steel construction for maximum durabilityOne Piece interior to end cap construction to reduce flex and stand up to vehicle vibration
      $143.96
    • (0 reviews)
      # mpn1569138321
      Subaru WRX / WRX STI 2003, Center Resonator Assembly by Bosal®. The product 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...
      Aluminized steel construction for maximum durabilityOne Piece interior to end cap construction to reduce flex and stand up to vehicle vibration
      $64.76




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    Popular Products

    2003 Subaru WRX Performance Exhaust Systems Reviews

    Average rating:  5  5 - 1 review
    4.8 of 5
    Invidia Cat-Back Exhaust System
    My mechanic installed this exhaust and told me that this is a good sturdy product. I'm happy with the price and quality of service.
    RPosted by Reggie (Miramar, FL) / January 15, 2017
    2005 Subaru WRX
    Was this review helpful for you? Yes

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