2007 Subaru WRX Emission Control

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    • Bosch® Premium Oxygen Sensor
      (0 reviews)
      # 79744356
      Subaru WRX 2007, 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 Oxygen Sensor...
      Up to 15 % savings in fuel costsReduced CO2 emissions
      $62.12 - $66.33
    • Bosch® Wideband Oxygen Sensor
      (0 reviews)
      # 35994389
      Subaru WRX / WRX STI 2458 CC 2007, Wideband Oxygen Sensor by Bosch®. Location: Upstream. Exact Fit. This sensor utilizes a sophisticated sensing element enabling it to produce a precise output in proportion to the air/fuel ratio....
      Detects the exact amount of unburned fuel in the exhaust streamOE connectors and OE-style harness for continuous wire from connector to sensor
      $117.80
    • Standard® Downstream Oxygen Sensor
      (0 reviews)
      # 44880008
      Subaru WRX Base Automatic Transmission 2007, Downstream Oxygen Sensor by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $73.65
    • Delphi® Oxygen Sensor
      (0 reviews)
      # 81776470
      Subaru WRX 2007, Oxygen Sensor by Delphi®. Connector Type: Square-4 Blade. Wrench Size: 7/8". As one of the leading suppliers of oxygen sensor technology since 1978, Delphi planar technology is the result of their OE and...
      OE connectors and wire lengths within three inches of OE specificationsResists high temperatures, vibration damage and wire corrosion to protect signal accuracy, and long life
      $59.64 - $181.06
    • Denso® Downstream OE Connector Oxygen Sensor
      (0 reviews)
      # 21071902
      Subaru WRX / WRX STI 2458 CC 2007, Downstream OE Connector Oxygen Sensor by Denso®. Heated. Screw Type. 4 Wires, 21.26" / 54.00 cm Length. Denso's light duty oxygen sensor started to appear on vehicles with the development of fuel...
      Corrosion-resistant stainless steel constructionPTFE filter blocks efficiency-robbing contaminants
      $54.70
    • Denso® Upstream OE Connector Air Fuel Ratio Sensor
      (0 reviews)
      # 21104205
      Subaru WRX / WRX STI 2458 CC 2007, Upstream OE Connector Air Fuel Ratio Sensor by Denso®. 4 Wires, 30.71" Length. The air/fuel ratio sensor sends information to the engine management computer to makes adjustments based on driving...
      Tarnish-proof platinum electrodes provides longer life and maintains accuracyQuick-response planar zircon element can quickly detect oxygen concentration
      $106.77
    • Walker Products Inc.® Air Fuel Ratio Sensor
      (0 reviews)
      # 8752512
      Subaru WRX / WRX STI 2007, Air Fuel Ratio Sensor by Walker Products Inc.®. Is your vehicle hard to start? Does its stumble and stall, and idle rough? Are you making more frequent visits to the pump? Your fuel system may need...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $169.26
    • Walker Products Inc.® OE Connector Oxygen Sensor
      (0 reviews)
      # 8739924
      Subaru WRX / WRX STI 2007, OE Connector Oxygen Sensor by Walker Products Inc.®. Position: Rear. Is your CHECK ENGINE light on? Has your vehicle failed a state emissions test? Your vehicle’s emissions control system is in need of...
      $92.25
    • NTK® Air-Fuel Ratio Sensor
      (0 reviews)
      # 78805189
      Subaru WRX / WRX STI 2.5L 2007, Upstream Air-Fuel Ratio Sensor by NTK®. OE Replacement. Air/Fuel ratio sensors utilize a sophisticated sensing element that enables them to produce a precise output in proportion to the air/fuel...
      Increases vehicle fuel economy and engine performance while decreasing vehicle exhaust emissionsDirect replacement
      $142.90
    • Genuine® PCV Valve
      (0 reviews)
      # 8801306
      Subaru WRX STI Base 2007, PCV Valve by Genuine®. Do you hear a humming or growling sound as you drive, or a clicking or clunking noise when cornering? If so, your vehicle may need wheel bearing or drive axle repairs. But before you...
      $23.87
    • Moroso® Air-Oil Separator
      (0 reviews)
      # 85013477
      Subaru WRX 2007, 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 your vehicle...
      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
      $303.71 - $356.11
    • Eastern® ECO II Direct Fit Front Catalytic Converter
      (0 reviews)
      # 17575733
      Subaru WRX 2007, Front Catalytic Converter by Eastern®. Catalytic Series: ECO II. Converter Configuration: Direct Fit. Catalytic Converter Format: Pre-Catalytic Converter. No Catalytic Converter Overall Length: 24.5". Inlet Type 2:...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $225.01
    • Bosal® Direct Fit Catalytic Converter
      (0 reviews)
      # 95034709
      Subaru WRX / WRX STI 2.5L 2007, Direct Fit 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....
      Constructed to meet your vehicle’s specific emissions requirementsRadial flow concept allows for an even distribution of the gas flow in the converter for the optimal conversion of harmful gases
      $145.34 - $290.05
    • Radium® Dual Catch Can Kit
      (0 reviews)
      # 98837081
      Subaru WRX / WRX STI Base 2007, Dual Catch Can Kit by Radium®. Includes: 2x Black Anodized and Laser Engraved Billet Aluminum Catch Cans, 4x Black Anodized -AN Aluminum Adapter Fittings, 4x Black Anodized 90 Degree -AN Hose Ends,...
      $427.45
    • MagnaFlow® Direct Fit California OBDII Rear Catalytic Converter
      (0 reviews)
      # 22212380
      Subaru WRX STI 2.5L with LEV2 LEV Specification 2007, Direct Fit California OBDII Catalytic Converter by MagnaFlow®. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. Location: Rear. CARB...
      Increases exhaust flow compared to original factory converterIncreased exhaust flow allows your engine to make more power
      $457.73
    • MagnaFlow® Direct Fit Federal OEM Grade Catalytic Converter
      (0 reviews)
      # 61590408
      Subaru WRX 2.5L 2007, Direct Fit Federal OEM Grade Catalytic Converter by MagnaFlow®. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. CARB Compliant: No. Converter Configuration:...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $398.76 - $525.78
    • MagnaFlow® Direct Fit Federal OEM Grade Front Catalytic Converter with Header
      (0 reviews)
      # 85644768
      Subaru WRX / WRX STI Base / Limited 2.5L 2007, Direct Fit Federal OEM Grade Catalytic Converter with Header by MagnaFlow®. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. Location: Front....
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $583.50
    • MagnaFlow® Direct Fit Federal Standard Catalytic Converter
      (0 reviews)
      # 61590411
      Subaru WRX 2007, Direct Fit Federal Standard Catalytic Converter by MagnaFlow®. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. CARB Compliant: No. Converter Configuration: Direct-Fit....
      Converter body manufactured from heavy-duty stainless steelIncreases exhaust flow compared to original factory converter
      $320.31 - $485.43
    • PERRIN Performance® Air Oil Separator Kit
      (0 reviews)
      # 84938512
      Subaru WRX / WRX STI 2.5L 2007, 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...
      Increases intercooler efficiencyReduces carbon build up
      $382.50
    • Standard® Intermotor™ Vapor Canister Purge Solenoid
      (0 reviews)
      # 45115678
      Subaru WRX / WRX STI 2.5L 2007, Intermotor™ Vapor Canister Purge Solenoid by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $91.78
    • Standard® Intermotor™ Secondary Air Injection Bypass Valve
      (0 reviews)
      # 97164442
      Subaru WRX STI 2007, Intermotor™ Secondary Air Injection Bypass Valve by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $228.47
    • Dorman® Engine Oil Separator Cover
      (0 reviews)
      # 16852464
      Subaru WRX / WRX STI 2007, Engine Oil Separator Cover by Dorman®. This is an aftermarket part that replaces factory OE # 11831AA150. Featuring a stamped steel design to improve upon the original, failure-prone plastic materials,...
      Oil- and heat- resistantDirect replacement for a proper fit
      $23.42
    • Genuine® Breather Hose
      (0 reviews)
      # 8922122
      Subaru WRX 2007, Breather Hose by Genuine®. Do you hear a humming or growling sound as you drive, or a clicking or clunking noise when cornering? If so, your vehicle may need wheel bearing or drive axle repairs. But before you...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $30.02 - $42.61
    • Moroso® Air-Oil Separator PCV Delete Kit (85699)
      (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
    • Eastern® ECO GM Universal Fit Large Round Catalytic Converter
      (0 reviews)
      # 100278342
      Universal Fit Catalytic Converter by Eastern®. Catalytic Series: ECO GM. Converter Configuration: Universal Fit. Catalytic Converter Format: Main Catalytic Converter. No Catalytic Converter Body Length: 12". Catalytic Converter...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $83.88 - $88.68
    • Eastern® ECO III Universal Fit Oval Catalytic Converter
      (0 reviews)
      # 100278390
      Universal Fit Catalytic Converter by Eastern®. Catalytic Series: ECO III. Converter Configuration: Universal Fit. Catalytic Converter Format: Main Catalytic Converter. No Without Inlet Gasket. Without Outlet Gasket. Keep your...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $69.41 - $108.03
    • Eastern® ECO II Universal Fit Oval Catalytic Converter
      (0 reviews)
      # 100278495
      Universal Fit Catalytic Converter by Eastern®. Catalytic Series: ECO II. Converter Configuration: Universal Fit. Catalytic Converter Format: Main Catalytic Converter. No Without Inlet Gasket. Without Outlet Gasket. Keep your...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $66.23 - $87.13
    • Eastern® Standard Universal Fit Oval Catalytic Converter
      (0 reviews)
      # 100278621
      Universal Fit Catalytic Converter by Eastern®. Catalytic Series: Standard. Converter Configuration: Universal Fit. Catalytic Converter Format: Main Catalytic Converter. No Without Inlet Gasket. Without Outlet Gasket. Without Oxygen...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $46.37 - $65.22
    • BTP® Crankcase Evacuation System (7317)
      (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
    • BTP® Polished Aluminum PCV Valve (8489)
      (1 reviews)
      # 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
    • Vibrant Performance® Oil Catch Can
      (0 reviews)
      # 78902539
      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
    • Peterson® One Way Inline Pop Off Valve
      (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
      $123.83 - $128.15
    • Peterson® Remote Breather Can
      (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
      $182.24 - $184.94
    • Peterson® Vacuum Regulator (08-0455)
      (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
      $194.39
    • GREEN FILTER® Crankcase Air Filter
      (1 reviews)
      # 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
    • Radium® Catch Can Kit
      (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
    • Radium® Competition Catch Can
      (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
    • Vibrant Performance® GESI® High Output Catalytic Converters
      (0 reviews)
      # 78902206
      Universal GESI® High Output Catalytic Converters by Vibrant Performance®. Vibrant Performance and Global Emissions Systems Inc. (GESi®) have teamed up to supply a series of OBD2 (1996 and newer) high flow Catalytic Converters...
      EPA certified for use on OBD2 vehicles (1996 and newer) in jurisdictionswhere the installation of Universal Catalytic Converters is still permitted
      $335.21 - $448.35
    • Vibrant Performance® High Output Catalytic Converters
      (0 reviews)
      # 78902217
      Universal High Output Catalytic Converters by Vibrant Performance®. Vibrant Performance Metal or Ceramic Core Catalytic Converters are made entirely of Stainless Steel and feature a Monolith that is far more durable and capable...
      T304 Stainless Steel ConstructionThese Converters are covered by a 5 year / 50,000 mile warranty
      $75.76 - $109.10
    • Dynatech® PowerCat Stainless Steel Catalytic Converter
      (0 reviews)
      # 84198005
      Universal PowerCat Stainless Steel Catalytic Converter by Dynatech®. 1 Piece. The Dynatech PowerCAT catalytic convertor uses the latest technology in catalytic convertor design. Utilizing a Premium Metallic Substrate internal...
      Premium metallic substrateSuperior strength and durability
      $174.99
    • Thunderbolt® Car Diesel Catalytic Converter
      (1 reviews)
      # 82989181
      Universal Car Diesel Catalytic Converter by Thunderbolt®. 4" Round x 11" Long. These superior quality products are carefully engineered to improve exhaust flow and boost power of your vehicle. These Thunderbolt performance exhaust...
      Designed to improve exhaust flowBuilt to enhance the performance of your vehicle
      $79.39
    • Thunderbolt® Oval Catalytic Converter
      (1 reviews)
      # 82989467
      Universal Oval Catalytic Converter by Thunderbolt®. These superior quality products are carefully engineered to improve exhaust flow and boost power of your vehicle. These Thunderbolt performance exhaust products also help your...
      Designed to improve exhaust flowBuilt to enhance the performance of your vehicle
      $39.69 - $76.06
    • Thunderbolt® The Spun Formed Catalytic Converter
      (0 reviews)
      # 82989388
      Universal The Spun Formed Catalytic Converter by Thunderbolt®. These superior quality products are carefully engineered to improve exhaust flow and boost power of your vehicle. These Thunderbolt performance exhaust products also...
      Designed to improve exhaust flowBuilt to enhance the performance of your vehicle
      $44.46 - $76.22
    • Thunderbolt® Truck Diesel Catalytic Converter
      (0 reviews)
      # 82989593
      Universal Truck Diesel Catalytic Converter by Thunderbolt®. 6" Round x 12" Long. These superior quality products are carefully engineered to improve exhaust flow and boost power of your vehicle. These Thunderbolt performance...
      Designed to improve exhaust flowBuilt to enhance the performance of your vehicle
      $183.83
    • Stainless Works® 304 SS High-Flow Catalytic Converter
      (0 reviews)
      # 83115043
      Universal 304 SS High-Flow Catalytic Converter by Stainless Works®. CARB Compliant: No. This superior product is made from high-grade stainless steel to ensure excellent quality and maximum resistance to corrosion. Engineered with...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $184.50
    • Vibrant Performance® J-Style Oxygen Sensor Restrictor Fitting (11619)
      (0 reviews)
      # mpn458109083
      Universal J-Style Oxygen Sensor Restrictor Fitting by Vibrant Performance®. A standard O2 Sensor threads into the female end of this fitting. Insert one of the three included inserts to restrict exhaust gas flow to the O2 Sensor...
      $33.00
    • Vibrant Performance® Oxygen Sensor Fitting
      (0 reviews)
      # 78902547
      Universal Oxygen Sensor Fitting by Vibrant Performance®. Vibrant Performance E-Vac Scavenger Kits are designed to pull as much as 3 inch lbs. of vacuum from a typical race engine, improving horsepower and reducing crankcase...
      Made of High Quality MaterialsAvailable in different sizes
      $2.00 - $241.40
    • Vibrant Performance® Oxygen Sensor Restrictor Fitting (11621)
      (0 reviews)
      # mpn358596199
      Universal Oxygen Sensor Restrictor Fitting by Vibrant Performance®. A standard O2 Sensor threads into the female end of this fitting. Insert one of the three included inserts to restrict exhaust gas flow to the O2 Sensor and retain...
      $20.95
    • Innovate Motorsports® O2 Sensor Clamp (3728)
      (0 reviews)
      # mpn358501228
      Universal O2 Sensor Clamp by Innovate Motorsports®. Patent-pending, venturi-effect, tapped exhaust clamp for obtaining accurate lambda measurements in non-cat autos or other engines.
      $77.19
    • Vibrant Performance® Crankcase Breather Filter with Chrome Cap
      (0 reviews)
      # 78901973
      Universal Crankcase Breather Filter with Chrome Cap by Vibrant Performance®. Vibrant Performance These compact filters are perfect for use on engine bays where space is limited.
      Made of High Quality MaterialsAvailable in different sizes
      $7.30
    • Peterson® 400 Watt Wrap Around Pad with Detachable Cord (08-0302)
      (0 reviews)
      # mpn358504768
      Universal 400 Watt Wrap Around Pad with Detachable Cord by Peterson Fluid Systems®. 110 Volt with detachable cord. Use hi-temp RTV to glue to tank or pan. Pre-heating of oil in dry or wet sump systmes is important to ensure good...
      $153.75
    • Haltech® Exhaust Gas Temperature Thermocouple
      (0 reviews)
      # 81416483
      Universal Exhaust Gas Temperature Thermocouple by Haltech®.
      $77.50 - $755.20
    • Haltech® V-Net Analog Pre-Programmed Single Cylinder Exhaust Gas Temperature Module
      (0 reviews)
      # 81416547
      Universal V-Net Analog Pre-Programmed Single Cylinder Exhaust Gas Temperature Module by Haltech®. These pre-programmed analog function module and sensor combinations are ready for plug-and-play installation on the V-Net cable.
      $256.25
    • Eastern® Universal Fit O2 Sensor Boss
      (0 reviews)
      # 100278721
      Universal Fit O2 Sensor Boss by Eastern®. If you need a quality Oxygen Sensor because your factory part is damaged or rusted, Eastern Catalytic has the part you need. Constructed from OE spec materials, this product perfectly does...
      Made of solid materialsOffered in the widest range of configurations
      $2.35 - $4.96
    • Eastern® Universal Fit O2 Sensor Boss Plug (86100)
      (0 reviews)
      # mpn924187940
      Universal Fit O2 Sensor Boss Plug by Eastern®. Thread 1 Size: 18mm X 1.5mm. If you need a quality Oxygen Sensor because your factory part is damaged or rusted, Eastern Catalytic has the part you need. Constructed from OE spec...
      Made of solid materialsOffered in the widest range of configurations
      $2.08
    • Eastern® Universal Fit Silicone Air Injection Hose
      (0 reviews)
      # 100278737
      Universal Fit Silicone Air Injection Hose by Eastern®. If you need a quality cowbell connector because your factory part is damaged or rusted, Eastern Catalytic has the part you need. Constructed from OE spec materials, this...
      Made of solid materialsOffered in the widest range of configurations
      $9.65 - $327.72
    • Dynatech® Oxygen Sensor Plug (785-10094)
      (0 reviews)
      # mpn358945733
      Universal Oxygen Sensor Plug by Dynatech®. 1 Piece. Professionally developed with a dedicated racer and performance builder in mind, this top-of-the-line exhaust product from Dynatech is right what the doctor ordered if you crave...
      Delivers a huge boost in performance and an awesome soundRigorously dyno-tested to provide maximum horsepower and torque gains
      $4.99
    • Innovate Motorsports® Exhaust Bung and Plug Kit (3842)
      (0 reviews)
      # mpn458132589
      Universal Exhaust Bung and Plug Kit by Innovate Motorsports®. For the last couple of years you may have noticed that all Innovate Motorsports wideband kits contain a 1" weld-in bung instead of the standard 1/2" bung. The 1" bung...
      $34.30
    • Innovate Motorsports® Extended Bung and Plug Kit
      (0 reviews)
      # 81698879
      Universal Extended Bung and Plug Kit by Innovate Motorsports®. For the last couple of years you may have noticed that all Innovate Motorsports wideband kits contain a 1" weld-in bung instead of the standard 1/2" bung. The 1" bung...
      $10.80 - $11.30
    • Innovate Motorsports® Heat-Sink Bung Extender (3729)
      (0 reviews)
      # mpn358501229
      Universal Heat-Sink Bung Extender by Innovate Motorsports®. The Bosch LSU4.2 wide-band O2 sensor (shipped as part of the LM-1 kit) is rated to operate at an exhaust gas temperature of < 1300 degrees (F), and a sensor housing...
      $76.90




    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.

    Popular Products

    2007 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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    2007 Subaru WRX Models
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