2003 Lexus RX Performance Parts

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    • MagnaFlow® - OBDII Direct Fit Catalytic Converter
      (0 reviews)
      # 317048225
      Lexus RX with LEV Standard / with LEV1 Standard 2003, OBDII Catalytic Converter by MagnaFlow®. Converter Configuration: Direct Fit. Without Air Tube. If your car needs replacement, install one that will get you through the smog check....
      Reduces harmful emissionsExact replacement with little or no fabrication or modifications required
      $417.41 - $434.87
    • Power Stop® - 1-Click Z23 Evolution Sport Drilled and Slotted Rear Brake Kit with Calipers
      (0 reviews)
      # 1574768022
      Lexus RX 2003, 1-Click Z23 Evolution Sport Drilled and Slotted Rear Brake Kit with Calipers by Power Stop®. Get superior benefits of ceramic pads and cross-drilled rotors in the Power Stop 1-Click Brake kit. These components are used in...
      Precision machined using a Tru-Cast™ technologyRotor run out is within 0.0015 and DTV tolerance specification is within 0.005
      $290.38 - $297.15
    • Unity® - Air Ditcher™ Air to Coil Conversion Kit
      (0 reviews)
      # 257091465
      Lexus RX 2003, Air Ditcher™ Air to Coil Conversion Kit by Unity®. Quantity: Sold as a Kit. Unity offers conversion kit that allow you to replace costly and worn air suspension springs and other components that are no longer reliable....
      $246.92
    • Weapon-R® - Secret Weapon Aluminum Polished Short Ram Air Intake System with Black Filter
      (2 reviews)
      # 377219615
      Lexus RX 2003, Secret Weapon Aluminum Polished Short Ram Air Intake System by Weapon-R®. The Secret Weapon Air Intake System uses patented technology to feed the engine 3 times as much air as other systems. As a result, engine...
      Patented technology increases airflow 3 times more than conventional systemsEach system is tuned to maximize engine performance output
      $237.05
    • Banks® - PowerPack™ Turbocharger System
      (0 reviews)
      # 450479564
      Universal PowerPack™ Turbocharger System by Banks®. The Banks Power Dual Exhaust PowerPack System is the complete towing package your pickup truck, with extended cab short bed configuration, deserves.
      Stunning Top GainsImproved Mileage
      $2,198.00 - $2,798.00
    • Royal Purple® - Extended Life Oil Filter
      (0 reviews)
      # mpn4489373745
      Lexus RX 2003, Extended Life Oil Filter by Royal Purple®. with 99% filtration efficiency at as small as 25 microns. The difference between Royal Purple and conventional oil filters is staggering
      100% synthetic micro-glass media that catches 99% of particles 25 microns and larger, and 80% of particles 10 microns and largerHigh-performance silicone anti-drain back valve that prevents dry starts, even in extreme conditions
      $11.99
    • Flex-a-Lite® - Direct Fit Dual Electric Fan
      (0 reviews)
      # mpn1711351
      Lexus RX 2003, Direct Fit Dual Electric Fan by Flex-a-Lite®. With Variable Speed Controller. Diameter: 13 1/2". Size: 27 1/2" x 17 1/2" x 4". Replace your old belt-driven fan with this highly efficient device and get all possible...
      $565.22
    • Fitch® Fuel Catalyst - Fuel Catalyst
      (0 reviews)
      # mpn1953524
      Lexus RX 2003, OEM In-Line Fuel Catalyst by Fitch® Fuel Catalyst. Get improved performance and reduced emissions with the Fitch Fuel Catalyst! Unlike expensive additives that must be continually replenished, you purchase this product...
      Increases fuel economyIncreases horsepower and torque for improved performance
      $215.55
    • Autolite® - Double Platinum Spark Plug with Resistor
      (0 reviews)
      # mpn3740157652
      Lexus RX 2003, Double Platinum Spark Plug by Autolite®. with Resistor. OE Style. Thanks to their platinum-to-platinum firing, these spark plugs virtually eliminate gap erosion, reduce misfires, and provide improved durability and...
      Ensure improved durabilityProvide accurate firing for DIS engines
      $5.74
    • Proforged® - Front Inner Straight Tie Rod End
      (0 reviews)
      # mpn3800686296
      Lexus RX 2003, Front Inner Straight Tie Rod End by Proforged®. Quantity: 1 per Pack. Proforged® applied the same technological advancements in ball joint construction to their line of Tie Rod Ends and Rack Ends, delivering a premium...
      SAE1045 forged steeling housingsBall studs forged from ultra-strong SAE4140 chromoly steel
      $81.56
    • Driveshaft Shop® - Driveshaft Driveshaft
      (0 reviews)
      # 1477449781
      Driveshaft by Driveshaft Shop®. If you have been waiting for the best shaft available for your vehicle, the wait is over. This top-of-the-line driveshaft offered by Driveshaft Shop is exactly what you need to put a lot of horsepower...
      Crafted from the highest quality materialsDynamically balanced at over 9000 RPMs
      $367.49 - $1,574.99
    • Auto Meter® - User Configurable LCD Dash Display
      (0 reviews)
      # mpn4478773922
      Universal User Configurable LCD Dash Display by Auto Meter®. Designed specifically for the harshest of environments, the carbon composite housing is IP65 sealed against water and dust intrusion and will easily withstand 20g of...
      7.0” TFT LCD panel, 1000 nit brightness for unmatched daytime and nighttime visibility with 800x480 resolution. Onboard photo sensor for automatic brightness controlDimensions - 8.3" Wide x 5.2" High x 1.4" Deep
      $2,832.00
    • Coan Engineering® - Bracket Glide™ Automatic Transmission Assembly
      (0 reviews)
      # 1246351290
      Bracket Glide™ Automatic Transmission Assembly by Coan Engineering®. With Transbrake. Steel Hub. Designed utilizing the latest technology, this product features premium quality and will perform better than advertised. Perfect for your...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $945.00 - $995.00
    • Braille Battery® - Advanced Lightweight 12V AGM Battery
      (0 reviews)
      # 985154426
      Universal Advanced Lightweight 12V AGM Battery by Braille Battery®. Battery Type: AGM. Voltage: 12V. Batteries have always presented the same problems of weight, safety, and cost. In racing, aerospace, and advanced technology...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $149.99 - $229.99
    • RaceQuip® - 110 Series Single Layer Racing Suit
      (0 reviews)
      # 69025922
      110 Series Single Layer Racing Suit by RaceQuip®. Avaliable in Colors: Black, Blue, Red. Get superior durability and comfort combined with overall flame and heat protection. Strong construction and advanced sewing techniques make this...
      Ensures heat and fire protectionGentle fabric provides superior comfort
      $99.95 - $139.95
    • MagnaFlow® - Heavy Metal Direct Fit Catalytic Converter
      (0 reviews)
      # 380871425
      Lexus RX 2003, Heavy Metal Catalytic Converter by MagnaFlow®. Converter Configuration: Direct Fit. Without Air Tube. With Pre and Post-Cat O2 Sensor Ports. If your car needs replacement, install one that will get you through the smog...
      Converter body manufactured from heavy-duty stainless steelReduces harmful emissions
      $286.05 - $347.13
    • EBC® - Stage 5 Super Street Dimpled and Slotted Brake Kit
      (0 reviews)
      # 4211623
      Lexus RX 2003, Stage 5 Super Street Dimpled and Slotted Brake Kit by EBC®. The EBC Stage 5 SuperStreet Brake Kit is designed for those looking for heavy-duty high gripping pads and rotors. Thanks to the 4000 Series Yellowstuff Street...
      $316.55 - $358.08
    • AirREX® - 3"-5" Air Suspension Lowering Kit
      (0 reviews)
      # 921709488
      Lexus RX With ACU or MCU10 or MCU15 Chassis 2003, Air Suspension Lowering Kit with 3"-5" Front and Rear Body Drop by AirREX®. If you're looking for a high-grade air management system that comes with everything you need to get your...
      Air struts are engineered to fit specific vehicles
      $6,200.00
    • Weapon-R® - Dragon Aluminum Polished Short Ram Air Intake System
      (1 review)
      # 377219566
      Lexus RX 2003, Dragon Aluminum Polished Short Ram Air Intake System by Weapon-R®. Weapon-R Intake Systems are CNC Mandrel Bent out of 6061 aluminum, and then Hand Tig Welded to ensure a positive seal and proper fitment. Each one of our...
      Custom designed and engineered for each applicationEach system is tuned to maximize engine performance output
      +4
      $189.45 - $194.45
    • Enginetech® - Timing Belt Idler
      (0 reviews)
      # mpn4562174415
      Lexus RX 2003, Timing Belt Idler by Enginetech®. The Engine Builder's Source, can locate the right part for nearly any rebuild application. Offering a full line of internal engine parts for domestic, import and high performance...
      Rigorously tested to withstand years of abuseDesigned with innovative manufacturing techniques
      $13.99
    • Flex-a-Lite® - Trimline Reversible Electric Fan
      (0 reviews)
      # mpn1711334
      Lexus RX 2003, Trimline Reversible Electric Fan by Flex-a-Lite®. Diameter: 16". Size: 16" x 16 1/2" x 3 1/4". Voltage: 12 Volt. The Trimline electric fans can be used as a primary fan or an auxiliary fan. They are economical fans that...
      $134.96
    • NOS® - Drive-By-Wire Wet Nitrous Kit
      (0 reviews)
      # mpn4476941942
      Lexus RX 2003, Drive-By-Wire Wet Nitrous Kit by NOS®. A great complement to NOS's cutting-edge nitrous kits, this one is great for vehicles where NOS application-specific kit is not available. Designed to work on sequential firing,...
      Exclusive NOS "Soft-Plume" Fogger nozzle finely atomizes the fuel for superior nitrous and fuel distributionIncludes the world-famous NOS 10 lb "blue bottle"
      $876.95
    • Autolite® - Iridium Spark Plugs with Resistor
      (0 reviews)
      # mpn4511855772
      Lexus RX 2003, Iridium Spark Plugs by Autolite®. with Resistor. These spark plugs are one of the brand's most technologically advanced spark plugs ever. With an iridium-enhanced 0.6 mm finewire design and proprietary platinum sidewire...
      Iridium-enhanced center electrodePatented, platinum sidewire technology
      $6.87
    • Proforged® - Front Outer Bent Tie Rod End
      (0 reviews)
      # mpn3800683813
      Lexus RX 2003, Front Outer Bent Tie Rod End by Proforged®. Quantity: 1 per Pack. Proforged applied the same technological advancements in ball joint construction to their line of Tie Rod Ends and Rack Ends, delivering a premium product...
      SAE1045 forged steeling housingsBall studs forged from ultra-strong SAE4140 chromoly steel
      $33.32
    • aFe® - Pro Series™ Rear Differential Cover
      (0 reviews)
      # 1479311818
      Pro Series™ Rear Differential Cover by aFe®. With Gear Oil. Upgrade your transmission with this finned aluminum pan and increase fluid capacity, improve fluid cooling and ease future maintenance jobs. It includes a magnetic drain...
      Leak Free SealCooling Fins
      $370.49 - $381.89
    • Fast® - Display Control Module Touchscreen Handheld
      (0 reviews)
      # mpn4563973472
      Universal Display Control Module Touchscreen Handheld by Fast®. 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...
      High quality at an affordable priceExpertly made from premium materials
      $408.96
    • Coan Engineering® - Circle Track™ Automatic Transmission Assembly
      (0 reviews)
      # 1246351279
      Circle Track™ Automatic Transmission Assembly by Coan Engineering®.
      $1,008.10 - $1,121.68
    • Braille Battery® - Carbon Lithium Micro Lite 12V Battery
      (0 reviews)
      # 985325168
      Universal Carbon Lithium Micro Lite 12V Battery by Braille Battery®. Battery Type: Lithium. Cold Cranking Amperage: 200. Polarity: Straight. Voltage: 12V. Carbon composite casings with CNC precision cell top design contain...
      $949.99 - $1,499.99
    • Simpson® - Jr. Speedway Shark Fiber Reinforced Polymer White Racing Helmet
      (0 reviews)
      # 125879312
      Jr. Speedway Shark Fiber Reinforced Polymer White Racing Helmet by Simpson®. Includes Helmet Shield. Helmet Liner made from Nomex. These Simpson Jr. Speedway Shark helmets support the next generation of racers with the same great...
      Lightweight, aerodynamic outer shell with SAT features T-38Built-in BLD (Boundary Layer Design)
      $499.95
    • MagnaFlow® - Heavy Metal Universal Fit Catalytic Converter
      (0 reviews)
      # 49716890
      Lexus RX 2003, Heavy Metal Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Without Air Tube. Without O2 Sensor Port. If your car needs replacement, install one that will get you through the smog check. This...
      Reduces harmful emissionsRequires fabrication or modifications to be installed into exhaust system
      $104.81 - $117.09




    CARiD is the ultimate source for premium-quality performance parts. With our extensive collection of performance upgrades, adding onto your vehicle's performance or improving its look is safe and easy. Boost the interior of your 2003 Lexus RX with a set of racing seats, raise or lower your vehicle for an aggressive look, or add a set of high-performance brake rotors for superior braking. Unlock the hidden potential of your 2003 Lexus RX that has been waiting to be released!


    • Add Power to Your Jeep
      Add Power to Your Jeep
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      Fuel Up Your Success
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      Take Your Braking to a New Level
    • When the Best Gets Better
      When the Best Gets Better
      The Performance & Sound to Thrill
      The Performance & Sound to Thrill

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    2003 Lexus RX Performance Parts Reviews

    Average rating:    5 - 1 review
    5 of 5
    StopTech Drilled And Slotted
    Great rotors, well designed and high quality. Had my mechanic install them, along with new ceramic brake pads (Akebono). I also purchased the recommended stainless steel hoses. We have a large hill we are always negotiating, putting a lot of pressure on the rotors. These high performance rotors are the perfect solution for our driving needs and safety. The touch, feel and responsiveness are incredible.
    Posted by Tom (Newport Coast, CA) / August 8, 20152001 Lexus RX
    Was this review helpful for you? Yes
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