2003 Lexus GX Performance Exhaust Systems

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    • (0 reviews)
      # mpn66255789
      Lexus GX 2003, Mach Force XP™ 409 SS Cat-Back Exhaust System by aFe®. Exhaust Type: Cat-Back. Exhaust Tubing Material: 409 SS. Main Tubing Diameter: 2.5". Exhaust System Sound: Aggressive / Loud. Get increased exhaust flow, more...
      $569.00
    • (0 reviews)
      # 136722537
      Lexus GX Sport Utility 2003, Stainless Steel Exhaust Manifold with Integrated Catalytic Converter by PaceSetter®. Emissions: EPA compliant. PaceSetter Direct-Fit Manifold Catalytic Converters are a direct replacement of original...
      $204.53
    • (0 reviews)
      # 389125766
      Lexus GX 2003, Heavy Metal Stainless Steel Exhaust Manifold with Integrated Catalytic Converter by MagnaFlow®. Primary Tubing Diameter: 1.75". Collector Outlet Diameter: 2". Emissions: EPA compliant. Color: Silver. Header Coating:...
      $474.01 - $477.94
    • (0 reviews)
      # 61589228
      Lexus GX 2003, OEM Grade Stainless Steel Exhaust Manifold with Integrated Catalytic Converter by MagnaFlow®. Primary Tubing Diameter: 1.75". Collector Outlet Diameter: 2". Emissions: EPA compliant. Color: Silver. Header Coating:...
      $552.47 - $556.38
    • (0 reviews)
      # mpn1123841
      Lexus GX 2003, Heavy Metal Catalytic Converter by MagnaFlow®. Emissions: EPA compliant. Converter Configuration: Direct Fit. Catalytic Converter Overall Length: 29". Includes: Gasket Riser (1). If your car needs replacement, install one...
      $221.37
    • (0 reviews)
      # mpn1038331
      Lexus GX 2003, Heavy Metal Catalytic Converter by MagnaFlow®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Position: Rear. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port. Catalytic...
      $111.97
    • (1 review)
      # mpn1128166
      Lexus GX 2003, OEM Grade Catalytic Converter by MagnaFlow®. Emissions: EPA compliant. Converter Configuration: Direct Fit. Position: Rear. Catalytic Converter Overall Length: 29". Includes: Gasket Riser (1). If your car needs...
      $300.79
    • (0 reviews)
      # mpn1038300
      Lexus GX 2003, OEM Grade Catalytic Converter by MagnaFlow®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Position: Rear. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port. Catalytic...
      $136.20
    • (0 reviews)
      # mpn3557984110
      Lexus GX 2003, Header Locking Bolt Kit by Stage 8®. Stage 8 locking fastener solutions are fail-safe when used and installed as directed. They are removable and reusable and can be visually inspected; if the locking retainer and clip...
      Thoughtfully designed for the highest efficiency and safetyWill provide more breakaway torque than any other locking system
      $76.34
    • (0 reviews)
      # 551202255
      Lexus GX 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
      $66.10 - $151.64
    • (0 reviews)
      # 115298000
      Lexus GX 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
      $76.05 - $472.21
    • (0 reviews)
      # 593153029
      Lexus GX 2003, Replacement Exhaust Kit by Bosal®. Emissions: EPA compliant. 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...
      Superior replacement for your worn out exhaust partHelps put your vehicle back to its tip-top shape
      $128.19 - $367.13
    • (0 reviews)
      # 165489309
      Lexus GX 2003, Replacement Exhaust Kit by AP Exhaust®. 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
      $33.07 - $356.55
    • (0 reviews)
      # 231126162
      Lexus GX 2003, Stainless Steel Natural Exhaust Manifold with Integrated Catalytic Converter by Dorman®. Emissions: EPA compliant. Finish: Natural. More like a complete kit than a single part, many of the Exhaust Manifolds include...
      $400.47 - $427.47
    • (0 reviews)
      # 231126307
      Lexus GX 2003, Ultra™ Stainless Steel Exhaust Manifold with Integrated Catalytic Converter by Walker®. Emissions: EPA compliant. Walker is an OE supplier to many major nameplate vehicle manufacturers. Trust Walker, an industry...
      $417.97 - $433.14
    • (0 reviews)
      # 72352338
      Lexus GX 2003, Exhaust Manifold with Integrated Catalytic Converter by Bosal®. Emissions: EPA compliant. If you’re in need of a replacement catalytic converter, you can’t do better than Bosal. They’re a leading supplier to vehicle...
      $367.13
    • (0 reviews)
      # 346412273
      Lexus GX 2003, ECO III Stainless Steel Exhaust Manifold with Integrated Catalytic Converter by Eastern®. Emissions: EPA compliant. If you need to replace your failed or damaged manifold, this product is the right choice. Designed...
      $294.45
    • (0 reviews)
      # 231126178
      Lexus GX 2003, Exhaust Manifold with Integrated Catalytic Converter by DEC®. Emissions: EPA compliant. Pick out a catalytic converter by DEC and get your emissions back into check without worrying to fail again. These catalytic...
      $425.54
    • (0 reviews)
      # 391739617
      Lexus GX 2003, Stainless Steel Direct Fit Exhaust Manifold with Integrated Catalytic Converter by AP Exhaust®. Emissions: EPA compliant. The growing concern for the environment means there is a growing need for quality emission control...
      $318.34 - $356.55
    • (0 reviews)
      # 504527929
      Lexus GX 2003, Ultra™ Catalytic Converter by Walker®. Emissions: EPA compliant. Converter Configuration: Direct Fit. Catalytic Converter Body Shape: Round. With 2 Inlets. With O2 Sensor Port. Catalytic Converter Overall Length:...
      $185.32
    • (0 reviews)
      # mpn1806778
      Lexus GX 2003, Ultra™ Catalytic Converter by Walker®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. With 1 Inlet. Without Air Tube. Without O2 Sensor Port. Catalytic Converter...
      $76.05
    • (0 reviews)
      # mpn1023687
      Lexus GX With Federal Emission 2003, Catalytic Converter by Bosal®. Emissions: EPA compliant. Converter Configuration: Direct Fit. With O2 Sensor Port. If you’re in need of a replacement catalytic converter, you can’t do better than...
      $180.77
    • (0 reviews)
      # mpn474117761
      Lexus GX 2003, 608 Series Catalytic Converter by AP Exhaust®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Position: Rear. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Catalytic...
      $86.28
    • (0 reviews)
      # mpn474118281
      Lexus GX 2003, Catalytic Converter by AP Exhaust®. Emissions: EPA compliant. Converter Configuration: Direct Fit. Position: Rear. Without Air Tube. With 1 O2 Sensor Port. Catalytic Converter Overall Length: 29". The growing concern for...
      $190.88
    • (0 reviews)
      # mpn1145251105
      Lexus GX 2003, Catalytic Converter by AP Exhaust®. Emissions: CARB compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Large Oval. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2.25"....
      $156.89
    • (0 reviews)
      # mpn1873511
      Lexus GX 2003, Quiet-Flow™ Stainless Steel Oval Aluminized Exhaust Muffler Assembly by Walker®. Muffler Inlet Diameter: 2.5". Muffler Outlet Diameter: 2.375". Muffler Body Length: 23". Muffler Overall Length: 55.25". Muffler...
      Designed for OE equivalent sound and precision fitSpun-locked heads for a proper resistance to backfire
      $126.91
    • (0 reviews)
      # mpn978387
      Lexus GX 2003, Center Exhaust Muffler 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 easy, bolt-on...
      Aluminized steel construction for maximum durabilityOne Piece interior to end cap construction to reduce flex and stand up to vehicle vibration
      $128.19
    • (0 reviews)
      # 73600362
      Lexus GX 2003, Professional™ Oxygen Sensor by ACDelco®. If your O2 Sensor is not functioning properly, you are robbing yourself of performance and costing yourself money at the gas pump. Let ACDelco’s Professional Oxygen Sensors...
      ACDelco Professional Oxygen Sensors earn the name ACDelco by being put through a variety of tests, often under extreme and unusual conditionsCustomers can receive better gas mileage with a properly working oxygen sensor
      $78.03 - $82.23
    • (0 reviews)
      # 81771433
      Lexus GX 2003, Oxygen Sensor by Delphi®. As one of the leading suppliers of oxygen sensor technology since 1978, Delphi planar technology is the result of their OE and aftermarket engineers partnering together to develop the most...
      OE connectors and wire lengths within 3" of OE specificationsResists high temperatures, vibration damage and wire corrosion to protect signal accuracy, and long life
      $53.31 - $73.71
    • (0 reviews)
      # 24165970
      Lexus GX 2003, Premium Oxygen Sensor by Bosch®. 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 from Bosch that is equally...
      Up to 15 % savings in fuel costsReduced CO2 emissions
      $42.00 - $55.73
    • (0 reviews)
      # 24165974
      Lexus GX 2003, Universal Fit Oxygen Sensor by Bosch®. Properly functioning oxygen sensors are important when it comes to your vehicle's fuel efficiency and reducing harmful exhaust emissions. That's why checking for, and possibly...
      Up to 15 % savings in fuel costsReduced CO2 emissions
      $39.64
    • (0 reviews)
      # 21093782
      Lexus GX 2003, 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 under idle, moderate...
      Corrosion-resistant stainless steel constructionPTFE filter blocks efficiency-robbing contaminants
      $44.17 - $51.64
    • (0 reviews)
      # 710342093
      Lexus GX 2003, Universal Fit 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 under...
      Corrosion-resistant stainless steel constructionPTFE filter blocks efficiency-robbing contaminants
      $31.81
    • (0 reviews)
      # 22844661
      Lexus GX 2003, Oxygen Sensor by Spectra Premium®. To ensure your vehicle has optimal performance and fuel economy while producing minimal emissions replace a defective O2 sensor with one backed by the aftermarket’s most rigorous...
      Increase vehicle fuel economy and engine performance while decreasing vehicle exhaust emissions100% performance tested to meet vehicle requirements
      $36.15 - $39.84
    • (0 reviews)
      # mpn1883328
      Lexus GX 2003, Exhaust Springs by Walker®. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the complete exhaust job. When you choose Walker...
      Makes installation quick and easyOptimal OE-style fit and quality
      $3.30
    • (0 reviews)
      # 505645103
      Lexus GX 2003, Rubber Mounting by Bosal®. Bosal has a vast selection of all necessary accessories and hardware to help you make the exhaust system installation or repair job quickly and eaily. Choose Bosal, and you'll get OE-quality...
      Constructed for a hassle-free exhaust repairEnsures a precise fit
      $3.00
    • (0 reviews)
      # 95032437
      Lexus GX 2003, Rubber Mounting by Bosal®. Location: Center Muffler. Bosal has a vast selection of all necessary accessories and hardware to help you make the exhaust system installation or repair job quickly and eaily. Choose Bosal, and...
      Constructed for a hassle-free exhaust repairEnsures a precise fit
      $3.00
    • (0 reviews)
      # mpn4483388327
      Lexus GX 2003, Exhaust Hanger by Genuine®. Multiple Hanger Position 1x Driver Side Catalytic Converter, Front Muffler Support 4x and Rear Muffler 1x. This product is made of high-quality materials to serve you for years to come....
      High quality at an affordable priceExpertly made from premium materials
      $24.56
    • (1 review)
      # mpn945018
      Lexus GX 2003, Exhaust Manifold Flange Gasket by Bosal®. Bosal has a vast selection of all necessary accessories and hardware to help you make the exhaust system installation or repair job quickly and eaily. Choose Bosal, and you'll get...
      Constructed for a hassle-free exhaust repairEnsures a precise fit
      $3.35
    • (0 reviews)
      # mpn4476976604
      Lexus GX 2003, Exhaust Manifold Gasket Set by Fel-Pro®. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global engineering resources, the gaskets meet...
      Direct OEM replacement for a proper fitEnsures reliable sealing performance
      $27.10
    • (0 reviews)
      # mpn197683581
      Lexus GX 2003, Exhaust Manifold Gasket Set 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 import vehicles in the...
      OE quality products from top original equipmentTop quality materials
      $30.69
    • (0 reviews)
      # mpn1322383
      Lexus GX 2003, Multi-Layer Steel Exhaust Manifold Gasket by AJUSA®. Material: Multi-Layer Steel. These gaskets seal components in the intake and exhaust systems of the vehicle such as the intake manifold, intake plenum, and exhaust...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      $10.61
    • (0 reviews)
      # mpn607142
      Lexus GX 2003, Multi-Layer Steel Exhaust Manifold Gasket Set by Victor Reinz®. Material: Multi-Layer Steel. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and...
      High quality at an affordable priceExpertly made from premium materials
      $41.12
    • (0 reviews)
      # mpn4486227923
      Lexus GX 2003, Exhaust Manifold Gasket by Ishino®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $17.79
    • (0 reviews)
      # mpn1143024214
      Lexus GX 2003, Exhaust Manifold Gasket Set by Apex Auto®. Apex products, at present, cover the engine gaskets, seals and head bolts for full coverage of Domestic, Japanese, Korean and popular Eurpoean applications, and are manufactured...
      Quick accurate delivery with excellent fill-rateExcellent inventory availability
      $16.11
    • (0 reviews)
      # mpn1151262686
      Lexus GX 2003, 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 to provide you...
      Designed to restore your vehicle's original performanceProvides superior sealing performance
      $21.85
    • (4 reviews)
      # 18140582
      Lexus GX 2003, Donut Exhaust Gasket by Walker®. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the complete exhaust job. When you choose Walker...
      Makes installation quick and easyOptimal OE-style fit and quality
      $2.43 - $5.27
    • (0 reviews)
      # 20571172
      Lexus GX 2003, Exhaust Flange Gasket by Bosal®. Bosal has a vast selection of all necessary accessories and hardware to help you make the exhaust system installation or repair job quickly and easily. Choose Bosal, and you'll get...
      Constructed for a hassle-free exhaust repairEnsures a precise fit
      $2.25 - $5.93
    • (0 reviews)
      # 19069528
      Lexus GX 2003, Exhaust Pipe Flange Gasket by Fel-Pro®. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global engineering resources, the gaskets meet...
      Direct OEM replacement for a proper fitEnsures reliable sealing performance
      $2.50 - $9.55
    • (0 reviews)
      # mpn179224577
      Lexus GX 2003, Exhaust Gasket by HJS®. 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 mind. It will meet your needs and deliver great...
      High quality at an affordable priceExpertly made from premium materials
      $9.27
    • (0 reviews)
      # mpn1853620
      Lexus GX 2003, Exhaust Bolt Kit by Walker®. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the complete exhaust job. When you choose Walker...
      Makes installation quick and easyOptimal OE-style fit and quality
      $5.26
    • (1 review)
      # mpn997147
      Lexus GX 2003, Exhaust Installation Kit by Bosal®. Bosal has a vast selection of all necessary accessories and hardware to help you make the exhaust system installation or repair job quickly and eaily. Choose Bosal, and you'll get...
      Constructed for a hassle-free exhaust repairEnsures a precise fit
      $10.95
    • (0 reviews)
      # 80699871
      Lexus GX 2003, Exhaust Muffler 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 come. It is...
      Completely compatible with your OE-unitFactory design to ensure a perfect fit
      $66.10 - $151.64
    • (0 reviews)
      # mpn179224577
      Lexus GX 2003, Exhaust Muffler Gasket by HJS®. 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 mind. It will meet your needs and deliver...
      High quality at an affordable priceExpertly made from premium materials
      $9.27
    • (0 reviews)
      # 734802927
      Lexus GX 2003, Exhaust Muffler Gasket by Ishino®. 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 mind. It will meet your needs and deliver...
      High quality at an affordable priceExpertly made from premium materials
      $5.90 - $27.38
    • (0 reviews)
      # 732933180
      Lexus GX 2003, Exhaust Muffler Gasket by Ishino®. 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 mind. It will meet your needs and deliver...
      High quality at an affordable priceExpertly made from premium materials
      $5.90 - $27.38
    • (0 reviews)
      # mpn4488561742
      Lexus GX 2003, Exhaust Muffler Gasket by Mahle®. 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 mind. It will meet your needs and deliver...
      High quality at an affordable priceExpertly made from premium materials
      $16.74
    • (3 reviews)
      # 285612487
      Universal 304 SS Oval Turbo Chambered Exhaust Muffler by Stainless Works®. Muffler Body Length: 14". Muffler Overall Length: 18". Muffler Sound: Aggressive / Loud. Stainless Works is the only manufacturer to build all of our mufflers...
      $175.75
    • (3 reviews)
      # 285612526
      Universal 304 SS Oval Turbo S-Tube Exhaust Muffler by Stainless Works®. Muffler Body Length: 14". Muffler Overall Length: 18". Muffler Sound: Aggressive / Loud. Muffler Structure: Turbo. Stainless Works is the only manufacturer to build...
      $175.75
    • (3 reviews)
      # 285612429
      Universal 304 SS Rat Trap Mill Exhaust Muffler by Stainless Works®. Muffler Overall Length: 24". Muffler Sound: Aggressive / Loud. Muffler Configuration: Center - Center. Stainless Works is the only manufacturer to build all of our...
      $147.25




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    Popular Products



    2003 Lexus GX Performance Exhaust Systems Reviews

    Average rating:  5  5 - 2 reviews
    5 of 5
    Exhaust Gasket
    Product came exactly as described and worked perfect.
    APosted by Andrea (Mount Pleasant, PA) / July 25, 2017
    2011 Scion tC
    Was this review helpful for you? Yes
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