2015 Subaru WRX Emission Control

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    • (0 reviews)
      # 79741810
      Subaru WRX STI 2458 CC 2015, Premium Oxygen Sensor by Bosch®. Location: Downstream. A worn-out oxygen sensor can cause engine performance problems and shorten the life of the catalytic converter. Tune-up your vehicle with an...
      Up to 15 % savings in fuel costsReduced CO2 emissions
      $60.71
    • (0 reviews)
      # 79744364
      Subaru WRX STI 2458 CC 2015, Universal Fit Oxygen Sensor by Bosch®. Location: Downstream. Properly functioning oxygen sensors are important when it comes to your vehicle's fuel efficiency and reducing harmful exhaust emissions....
      Up to 15 % savings in fuel costsReduced CO2 emissions
      $38.15 - $45.22
    • (0 reviews)
      # 164072508
      Subaru WRX 2015, Downstream Oxygen Sensor by Denso®. Denso's light duty oxygen sensor started to appear on vehicles with the development of fuel injection systems. The basic job of the sensor is to monitor the air fuel mixture...
      Corrosion-resistant stainless steel constructionPTFE filter blocks efficiency-robbing contaminants
      $105.19
    • (0 reviews)
      # 164072525
      Subaru WRX 2015, Upstream OE Connector Air Fuel Ratio Sensor by Denso®. The air/fuel ratio sensor sends information to the engine management computer to makes adjustments based on driving conditions. This wider range and variable...
      Tarnish-proof platinum electrodes provides longer life and maintains accuracyQuick-response planar zircon element can quickly detect oxygen concentration
      $123.76
    • (0 reviews)
      # 138864017
      Subaru WRX STI 2015, Rear Oxygen Sensor by Walker®. Location: Rear.
      $92.71
    • (0 reviews)
      # 22131744
      Subaru WRX STI 2458 CC 2015, Downstream Oxygen Sensor by NTK®. Location: B1S2. OE Equivalent This product is designed to improve engine efficiency and fuel mileage, while reducing emissions and extending catalyst life. The oxygen...
      Increases vehicle fuel economy and engine performance while decreasing vehicle exhaust emissionsDirect replacement
      $72.33
    • (0 reviews)
      # 85013527
      Subaru WRX / WRX STI 2015, Air-Oil Separator by Moroso®. With this quality part backed by a great price, you can enjoy your vehicle so much more than you thought was possible. This Moroso part is specifically engineered to make...
      Plumbed into a vehicle's PCV system to capture the excess crankcase vapors, residual oil mist and moisture from reentering the intake tractVehicles from the factory vent these excess crankcase vapors, residual oil mist and moisture right back into the intake manifold which could cause detonation, oil deposits to form in the intake tract including the valves themselves and from lowering the ficiency of the intercooler in intercooler equipped vehicles
      $144.08 - $151.33
    • (0 reviews)
      # 92346364
      Subaru WRX STI 2015, Air Oil Separator Kit by PERRIN Performance®. The PERRIN Performance Air Oil Separator traps oil from the crank case vents before it enters the intake, thus increasing intercooler efficiency and reduces chances...
      Increases intercooler efficiencyReduces carbon build up
      $382.50
    • (0 reviews)
      # 8713112
      Subaru WRX STI 2015, Crankcase O-Ring by Nippon Reinz®. Between Crankcase Halves. Size: 19.2mm (0.75") x 2.4mm (0.09"). Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK...
      $2.70
    • (0 reviews)
      # 97176847
      Subaru WRX 2015, Intermotor™ PCV Valve by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $15.08 - $16.46
    • (0 reviews)
      # 80951593
      Subaru WRX 2015, Anodized Aluminum Baffled Oil Catch Can by Mishimoto®. The Mishimoto Baffled Oil Catch Can is the most advanced oil catch can on the market. Every turbo system deserves to be complemented by a proper oil catch can...
      40-micron bronze filter blocks oil from depositing in ventilation systemSpecial engineered inlet pattern "turbulates" air longer, allowing oil to condense
      $393.75
    • (0 reviews)
      # mpn358583092
      Universal Air-Oil Separator PCV Delete Kit by Moroso®. With this quality part backed by a great price, you can enjoy your vehicle so much more than you thought was possible. This Moroso part is specifically engineered to make your...
      $98.86
    • (0 reviews)
      # mpn2059757184
      Universal Clamp On Dry Sump Breather Tank by JOES Racing®. Size: 1"-1/2". JOES Dry Sump Breather tank is designed to allow venting of your dry sump tank while catching any oil that blows out. It’s a compact 3" x 3" x 6.5" to fit...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $89.81
    • (1 review)
      # 139379692
      Universal Bullet Catalytic Converters 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 product is the way to go. Made of stainless...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $66.16 - $100.28
    • (0 reviews)
      # 139379691
      Universal Eco GM Round Catalytic Converter by Eastern®. Overall Length: 16". Converter Body Length: 12". Keep your exhaust emissions within specifications and your vehicle running in top condition with this quality product. Made of...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $83.88 - $88.78
    • (0 reviews)
      # 172044678
      Universal Large Oval Catalytic Converter by Eastern®. Overall Length: 16". Converter Body Length: 12". Keep your exhaust emissions within specifications and your vehicle running in top condition with this quality product. Made of...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $72.25 - $117.90
    • (0 reviews)
      # 139371691
      Universal Large Oval Dual Inlet Catalytic Converter by Eastern®. Outlet A: 2". Keep your exhaust emissions within specifications and your vehicle running in top condition with this quality product. Made of stainless steel, the...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $70.86 - $143.46
    • (0 reviews)
      # 172044684
      Universal Large Oval Single Inlet Catalytic Converter by Eastern®. Keep your exhaust emissions within specifications and your vehicle running in top condition with this quality product. Made of stainless steel, the catalytic...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $83.94 - $100.94
    • (0 reviews)
      # 139371686
      Universal Oval Body Catalytic Converter by Eastern®. Keep your exhaust emissions within specifications and your vehicle running in top condition with this quality product. Made of stainless steel, the catalytic converter is...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $45.48 - $108.03
    • (0 reviews)
      # 139371692
      Universal QuieCat™ Oval Resonated Converter by Eastern®. Overall Length: 18". Converter Body Length: 14". The new Eastern Catalytic QuietCat™ converter is specifically designed to meet the demand for quieter operation on full...
      Baffled tube reduces sound levels by 35% without losing horsepowerHigh flow design retains maximum engine output and maximizes catalytic efficiency
      $61.60 - $109.69
    • (0 reviews)
      # 139371685
      Universal Round Body Catalytic Converter by Eastern®. Keep your exhaust emissions within specifications and your vehicle running in top condition with this quality product. Made of stainless steel, the catalytic converter is...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $42.50 - $89.96
    • (0 reviews)
      # 172044711
      Universal Stuffed Tube Catalytic Converter with EndCap by Eastern®. Keep your exhaust emissions within specifications and your vehicle running in top condition with this quality product. Made of stainless steel, the catalytic...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $49.63 - $80.91
    • (0 reviews)
      # 139371684
      Universal Universal Fit 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 product is the way to go. Made of...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $55.42 - $84.21
    • (0 reviews)
      # 182090567
      Universal Catalytic Converter by Bosal®. Converter Configuration: Direct Fit. CARB Compliant: No. If you’re in need of a replacement catalytic converter, you can’t do better than Bosal. They’re a leading supplier to vehicle...
      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
      $53.39 - $112.81
    • (0 reviews)
      # 174563966
      Universal Catalytic Converter by Bosal®. Converter Configuration: Universal Fit. 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...
      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
      $70.91 - $71.91
    • (0 reviews)
      # 107663259
      Universal Oxygen Sensor by K&N®. Protect your expensive racing engine and keep it running at peak performance with these Fuel Injection Line Air Filters. They’ll keep the injector nozzle aeration holes from ingesting dirt or...
      $13.93 - $90.99
    • (0 reviews)
      # mpn1589831653
      Harness by Fast®. Includes Wide-Band Sensor and Harness to convert a a Single Sensor Wideband Unit to a Dual Sensor Unit. Also includes weld in O2 bung and a plug for it.
      High quality at an affordable priceExpertly made from premium materials
      $133.16
    • (7 reviews)
      # 152045176
      Universal Aluminum Oil Catch Tank by Weapon-R®. Whether you’re going racing or just want to look like you are, this aluminum tank will dress up your engine compartment.
      Manufactured from Billet 6061 AluminumBillet Aluminum machined fittings
      $59.50 - $128.00
    • (7 reviews)
      # 152045214
      Universal Neo-Ti Aluminum Oil Catch Tank by Weapon-R®. Whether you’re going racing or just want to look like you are, this Neo-Titanium Finish aluminum tank will dress up your engine compartment.
      Manufactured from Billet 6061 AluminumBillet Aluminum machined fittings
      $89.25
    • (1 review)
      # 107662222
      Universal Clamp On Crankcase Vent Filter by K&N®. Designed utilizing the latest technology, this Crankcase Vent Filter by K&N 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
      $19.69 - $23.35
    • (1 review)
      # 107662290
      Universal Push On Crankcase Vent Filter by K&N®. Designed utilizing the latest technology, this Crankcase Vent Filter by K&N 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
      $9.42 - $92.99
    • (0 reviews)
      # mpn753352631
      Universal Crankcase Evacuation System by BTP®. Designed utilizing the latest technology, this product delivers the performance you've been looking for. With this second-to-none part by BTP you will keep emission control system in...
      Designed for better performance of your emission control systemRight for your vehicle and lifestyle
      $34.74
    • (1 review)
      # mpn753352945
      Universal Polished Aluminum PCV Valve by BTP®. 3/4" O.D. Neck. 3/8" Tube. Designed utilizing the latest technology, this product delivers the performance you've been looking for. With this second-to-none part by BTP you will keep...
      Designed for better performance of your emission control systemRight for your vehicle and lifestyle
      $20.07
    • (0 reviews)
      # 118615091
      Universal Oil Catch Can by Vibrant Performance®. Vibrant Performance offers the most versatile Universal Catch Cans on the market. Made entirely from T6061 Aluminum, it is suitable for various types of service: Oil, Fluid (i.e....
      Top End Cap is pressure fitEach End Cap also features a port tapped for 3/4” NPT fittings, perfect for running a breather filter off your Catch Can
      $102.38
    • (0 reviews)
      # 118569120
      Universal Round Straight Breather Air Filter by Spectre Performance®. Filter Material: Non-woven Synthetic. Top Material/Finish: Chrome. Rooted in racing, Spectre Performance designs and builds every product with the same goal in...
      High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality
      $10.86 - $18.25
    • (0 reviews)
      # 118569184
      Universal Clamp-On Style Mini Breather Filter by Spectre Performance®. Flange Inside Diameter: 0.375" (10 mm). Flange Length: 0.75" (19 mm). Height: 1.75" (44 mm). Outside Diameter: 2" (51 mm). Top Material/Finish: Chrome. Top...
      High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality
      $9.80 - $13.73
    • (1 review)
      # 107150329
      Universal Magnum Flow Pro Dry S Crank Case Ventilation Air Filter by aFe®. Keep your engine breathing properly and looking good with this crankcase vent breather filter.
      High Flow For Increased PerformanceWashable and reusable
      $25.95 - $46.95
    • (0 reviews)
      # 82368344
      Universal One Way Inline Pop Off Valve by Peterson Fluid Systems®. Breather assembly is installed in line from engine's crankcase. Valve seals engine from air entering engine, but opens in the event of crankcase pressure, allowing...
      Protects the pump in case of catastrophic engine failureMade of high quality Aluminum
      $107.49 - $111.24
    • (0 reviews)
      # mpn358504773
      Universal One Way Pop Off Valve by Peterson Fluid Systems®. With filter and -12 AN Weld Bung. Breather assembly is installed on engine's crankcase in vacuum condition. Valve seals engine from air entering engine, but opens in the...
      $99.99
    • (0 reviews)
      # 82368371
      Universal Remote Breather Can by Peterson Fluid Systems®. Peterson remote breather cans with internal baffeling are excellent when breathing your dry sump tank to atmosphere or running a vacuum system.
      Made of high quality AluminumInternally baffled
      $159.29 - $161.65
    • (0 reviews)
      # mpn358504774
      Universal Vacuum Regulator by Peterson Fluid Systems®. Peterson's new adjustable vacuum regulator is on the leading edge of engine management. It has been proven to regulate crankcase vacuum and hold a steady level through...
      Regulates crankcase vacuumMade of high quality billet Aluminum
      $169.91
    • (5 reviews)
      # 120885931
      Universal Clamp-On Round Straight Breather Filter by AIRAID®. Flange Length: 0.5" (13 mm). Height: 1.5" (38 mm). Quantity: Sold individually. Keep your engine breathing properly and looking good with these crankcase vent filters.
      Washable and reusableBacked by AIRAID's "No Hassle" warranty
      $20.30 - $27.44
    • (5 reviews)
      # 120885920
      Universal Push-On Oval Straight Breather Filter by AIRAID®. Filter Material: Non-woven Synthetic. Flange Length: 0.5" (13 mm). Height: 1.5" (38 mm). Outside Length: 4". Outside Width: 2" (51 mm). Quantity: Sold individually. Keep...
      Washable and reusableBacked by AIRAID's "No Hassle" warranty
      $20.30
    • (5 reviews)
      # 120885994
      Universal Push-On Round Straight Breather Filter by AIRAID®. Flange Inside Diameter: 1.25" (32 mm). Flange Length: 0.5" (13 mm). Height: 1.5" (38 mm). Quantity: Sold individually. Keep your engine breathing properly and looking...
      Washable and reusableBacked by AIRAID's "No Hassle" warranty
      $17.24 - $25.40
    • (5 reviews)
      # 120886015
      Universal Screw-On Round Straight Breather Filter by AIRAID®. Filter Material: Non-woven Synthetic. Flange Inside Diameter: 1.25" (32 mm). Flange Length: 0.5" (13 mm). Height: 1.5" (38 mm). Outside Diameter: 3" (76 mm). Quantity:...
      Washable and reusableBacked by AIRAID's "No Hassle" warranty
      $20.30 - $25.40
    • (1 review)
      # 2565187
      Universal Crankcase Air Filter by Green Filter®. Route your crankcase breather into one of these filters to keep dirt and bugs from entering your crankcase. It’s easy to clean, and will soak up some glop that otherwise would wind...
      Cotton element catches oily blow-bySteel mesh resists denting
      $16.79 - $20.99
    • (0 reviews)
      # 117988793
      Universal Engine Valve Cover Breather Filter by R2C Performance®. R2C Performance valve cover breather filters are designed to offer racers the finest crankcase and tank breather technology available today. R2C's breather flange...
      $30.04
    • (0 reviews)
      # 102569577
      Universal Catch Can Kit by Radium®. An oil catch can is essential on a performance vehicle to protect the engine from elevated levels of crankcase blow-by accumulated from aggressive driving. Excess oil saturated air circulating...
      $157.65 - $299.20
    • (0 reviews)
      # 102569584
      Universal Competition Catch Can by Radium®. The Radium Competition Catch Can (CCC) was created to provide motorsports participants with a high quality product that meets the common 1 Quart minimum capacity requirements dictated by...
      $332.45 - $379.95
    • (0 reviews)
      # 141085332
      Universal Clamp-On Crankcase Vent Filter by S&B®. All filters S&B produces is manufactured to the highest standards and submitted for CARB approval.
      High quality at an affordable priceExpertly made from premium materials
      $12.62 - $15.77
    • (1 review)
      # mpn1055716
      Universal Pro 5 Round Straight Air Filter Breather by Volant®. Flange Inside Diameter: 0.75". Base Outside Diameter: 2". Top Outside Diameter: 2". Height: 1.5". Volant's high performance 5 layer air filters are made of the highest...
      Cleanable and ReusableFive-Layers of protection
      $32.57
    • (0 reviews)
      # 139371689
      Universal Performance Bullet Catalytic Converters 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 product is the way to go. Made of...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $65.65 - $119.05
    • (0 reviews)
      # 139371690
      Universal Tru™ Performance 304 SS Large Oval Catalytic Converter by Eastern®. Overall Length: 16". Converter Body Length: 12". Eastern Tru Performance Converters feature a 300 cells per square inch ceramic substrate for improved...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $102.60 - $106.73
    • (0 reviews)
      # 172044712
      Universal Tru™ Performance 409 SS Catalytic Converter by Eastern®. Overall Length: 16". Converter Body Length: 12". Eastern Tru Performance Converters feature a 300 cells per square inch ceramic substrate for improved exhaust...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $87.79 - $116.23
    • (6 reviews)
      # 120105855
      Universal 200 Series Stainless Steel Round Catalytic Converter by Flowmaster®. Catalytic Series: 200 Series. CARB Compliant: No. Converter Configuration: Universal Fit. Converter Body Material: Stainless Steel. Catalytic Converter...
      Exceed all federal emission standardsStainless Steel shells
      $116.53 - $204.95
    • (5 reviews)
      # 120105826
      Universal 220 Series Stainless Steel Oval Catalytic Converter by Flowmaster®. Catalytic Series: 220 Series. CARB Compliant: No. Converter Configuration: Universal Fit. Converter Body Material: Stainless Steel. Catalytic Converter...
      Exceed all federal emission standardsStainless Steel shells
      $64.66 - $68.56
    • (5 reviews)
      # 120105830
      Universal 222 Series Stainless Steel Round Catalytic Converter by Flowmaster®. Catalytic Series: 222 Series. CARB Compliant: No. Converter Configuration: Universal Fit. Converter Body Material: Stainless Steel. Catalytic Converter...
      Exceed all federal emission standardsStainless Steel shells
      $67.12
    • (1 review)
      # 120105834
      Universal 223 Series Stainless Steel Round Catalytic Converter by Flowmaster®. Catalytic Series: 223 Series. CARB Compliant: No. Converter Configuration: Universal Fit. Converter Body Material: Stainless Steel. Catalytic Converter...
      Exceed all federal emission standardsStainless Steel shells
      $73.86
    • (1 review)
      # 120105838
      Universal 225 Series Stainless Steel Oval Catalytic Converter by Flowmaster®. Catalytic Series: 225 Series. CARB Compliant: No. Converter Configuration: Universal Fit. Converter Body Material: Stainless Steel. Catalytic Converter...
      Exceed all federal emission standardsStainless Steel shells
      $68.02 - $71.98
    • (6 reviews)
      # 120105843
      Universal 240 Series Stainless Steel Oval Catalytic Converter by Flowmaster®. Catalytic Series: 240 Series. CARB Compliant: No. Converter Configuration: Universal Fit. Converter Body Material: Stainless Steel. Catalytic Converter...
      Exceed all federal emission standardsStainless Steel shells
      $129.60 - $144.93




    Guides & Articles

    • Replacement Emission Control Parts
      Oxygen Sensors - Why Does My Car Have Four, And Can I Replace One Myself?
      An oxygen sensor (also known as an O2 sensor or Lambda sensor) is a sensor designed to generate a reading based on the content of oxygen in an automotive exhaust system. The sensor itself is made of a ceramic compound with porous-shaped electrodes coated in platinum, surrounded by a protective metal shell casing. O2 sensor casings are threaded, and the entire unit is designed to screw in until it reaches a half-in, half-out position on the exhaust pipe. Modern oxygen sensors are heated to ensure they reach operating temperature quickly.
    • Ignition Parts
      Auto Parts: Dealer vs. Aftermarket
      The question of whether to buy parts from an automotive dealer vs. ones from aftermarket manufacturers is as age-old as the automobile itself. Below, we'll take a look at things worth considering to help you make a better choice if you're facing that same question. Automobile manufacturers and dealerships always advertise the fact that their parts are "genuine" because they were made by the exact same production facility that made the parts installed on the assembly line.

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    2015 Subaru WRX Emission Control Reviews

    Average rating:  4.5  4.5 - 3 reviews
    4.8 of 5
    Good Purchase
    Recently I have mounted new cat. My purchase has a faultless casing and everything measures up perfectly. That's nice deal for my Dodge, because the sound great. I like the tonality of these high flow catalytic if your looking for high flow cats these are the way to go.
    CPosted by Craig Walters (Louisbourg, NS) /
    Was this review helpful for you? Yes
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    2015 Subaru WRX Models
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