2003 Chevy Impala Performance Parts

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    • (1 review)
      # mpn1095598
      Chevy Impala 2003, Street Series™ Stainless Steel Cat-Back Exhaust System with Split Rear Exit by MagnaFlow®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 2.5". Exhaust System Sound:...
      $814.87
    • (2 reviews)
      # 480373967
      Chevy Impala 2003, 1-Click Street Warrior Z26 Drilled and Slotted Brake Kit by Power Stop®. Specially designed for high performance street drivers who demand shorter stops under the most extreme conditions, this brake kit is a perfect...
      $133.47 - $494.55
    • (0 reviews)
      # 17808857
      Chevy Impala 2003, AGX™ Driver or Passenger Side Strut by KYB®. Quantity: 1 per Pack. Whether you simply drive in town or prefer a firm, aggressive ride all the time, AGX Shocks and Struts by KYB are a great choice. These twin-tube...
      $121.36 - $124.60
    • (0 reviews)
      # 377146082
      Chevy Impala 2003, Stealth Dragon Aluminum Flat Black Short Ram Air Intake System by Weapon-R®. The Secret Weapon Intake was designed, to increase air intake volume to the engine. The concept is to create two different air velocity...
      CAD-designed and flow bench testedHigh quality dense poly urethane foam protection
      $191.25
    • (1 review)
      # mpn4478770287
      Chevy Impala 3.8L 2003, Max Energy Programmer by Hypertech®. Premium Octane: +16HP +30TQ. Regular Octane: +6HP +10TQ. The Max Energy Programmer series provides high levels of power and economy for gasoline engines, with specific tuning...
      Shift Firmness 25%, 50%, 75%, & 100%Shift Point Adjustment 1-2 shiftp. -6 to +6 MPH, 2-3 shiftp. -12 to +12 MPH, 3-4 shiftp. -18 to +18 MPH,
      $329.00
    • (0 reviews)
      # mpn3064650434
      Chevy Impala 2003, Stainless Steel Reusable Oil Filter by HUBB Filters®. The HUBB product looks and works differently than a conventional filter and protects your engine much better. The HUBB filter features two large-sized kidney...
      Made from surgical stainless steelFilter-in-a-filter design
      $98.99
    • (4 reviews)
      # 102199864
      Chevy Impala 2003, Thermocap™ Radiator Cap by Mr. Gasket®. Pressure: 16 lbs. Material: Aluminum. Keeping your engine cool is pretty important, so Mr. Gasket has a full line of cooling system accessories. Whether it’s a simple,...
      Brilliant triple-chrome platingPrevent boilovers
      +1
      $32.43 - $37.53
    • (2 reviews)
      # 606038601
      Chevy Impala 2003, High Performance Transmission Oil Cooler Kit by Hayden®. Featuring a lightweight aluminum construction, this high performance transmission oil cooler is designed to provide outstanding cooling, as well as complement...
      SAE 45 degree fittings for maximum reliabilityElectrostatically powder coated to prevent corrosion
      $37.65 - $47.10
    • (3 reviews)
      # mpn1953525
      Chevy Impala 3.4L 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...
      Increases fuel economyIncreases horsepower and torque for improved performance
      $215.55
    • (0 reviews)
      # mpn1442974
      Chevy Impala 2003, Blaster™ 2-Tower Direct Ignition Coil by MSD®. Direct Connection. Designed utilizing the latest technology, this product by MSD features premium quality and will perform better than advertised. Perfect for your...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $50.32
    • (0 reviews)
      # 217285710
      Chevy Impala 2003, High Performance P-Series Power Steering Pump Kit by PSC Motorsports®. This is a complete pump and reservoir kit which features the SP1405 high performance pump, SR146K reservoir and suction/return hose kit. This kit...
      Reliable solution for your steering needsDesigned with functionality in mind
      $442.72
    • (0 reviews)
      # 1120521504
      Chevy Impala 2003, Gear Reduction Starter by Tuff Stuff Performance®. Mounting: 1 Long and 1 Short Bolt. Tuff Stuff starters are hand made from premium quality new components - not remanufactured - and are quality built in USA. Most...
      Designed For High Horsepower And High Compression EnginesLighter And Smaller Than OE Starters
      $134.54 - $171.44
    • (0 reviews)
      # 692981007
      Chevy Impala 2003, Wheel Hub Assembly by Wilwood®. Designed utilizing the latest technology, this product by Wilwood features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $121.95 - $124.93
    • (0 reviews)
      # 48222560
      Club X-1 Full Face ATM (Advance Thermo Material) Racing Helmet by Sparco®. Certification: ECE 05; Material: ATM (Advance Thermo Material) Designed for indoor kart racing where a fire proof helmet isn't required, this product is...
      Designed for indoor kart racingProvides ultimate protection
      $140.00
    • (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
    • (0 reviews)
      # 22202024
      Chevy Impala with LEV1 Standard / with ULEV Standard 2003, OBDII Catalytic Converter by MagnaFlow®. Emissions: CARB compliant. Converter Configuration: Direct Fit. With Gaskets. Without Air Tube. With Post-Cat O2 Sensor Port. Catalytic...
      $678.85 - $705.91
    • (0 reviews)
      # 480382023
      Chevy Impala 2003, 1-Click Z23 Evolution Sport Drilled and Slotted 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...
      $210.48 - $458.78
    • (1 review)
      # 17923182
      Chevy Impala 2003, Monro-Matic Plus™ Driver or Passenger Side Strut by Monroe®. Quantity: 1 per Pack. Nitrogen gas charged Monro-Matic Plus shocks and struts feature VPV (velocity proportional valving) and innovative all weather...
      $33.95 - $39.16
    • (13 reviews)
      # 377146077
      Chevy Impala 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
      $212.50
    • (0 reviews)
      # 566687087
      Chevy Impala 2003, V-Force Plus Performance Module by JET®. The JET V-Force Plus features the same power tuning technology found in JET’s performance modules/programmers. The JET V-Force Plus is an inline tuning device that uses a...
      Improve horsepower and throttle responseOptimized ignition advance curves
      $274.46
    • (0 reviews)
      # mpn629104
      Chevy Impala 2003, ProGuard D2 Oil Filter by aFe®. aFe created the Pro Guard D2 Oil Filter to handle the extreme conditions typically encountered by a heavy-duty diesel truck. Inside it has a synthetic composite material for maximum...
      Synthetic filter media provides maximum engine protection with minimal flow restriction600 lb. burst strength canister for strength and durability
      $16.15
    • (0 reviews)
      # mpn1581287
      Chevy Impala LS 2003, Thermostat by JET®. Temperature: 180 Degree. Jet Low-Temp Thermostats increase horsepower and control engine temp by consistently metering water flow throughout the engine instead of simply cycling open/close,...
      Designed to reduce engine temperature and produce more horsepowerMade from stainless steel
      $14.96
    • (0 reviews)
      # 605977215
      Chevy Impala 2003, Ultra-Cool™ Transmission Oil Cooler Kit by Hayden®. This product is an effective and economical way to keep your transmission at its optimum operating temperature. The high-efficiency turbulators in every tube...
      Compatible with OEM cooler systemsUltrasonically soldered for reliability
      $25.39 - $28.44
    • (0 reviews)
      # mpn2529857
      Chevy Impala 3.8L 2003, PowerAid™ Throttle Body Spacer by AIRAID®. The POWERAID Throttle Body Spacer is designed to enhance off-idle torque from 800 rpm to approximately 3,000 rpm. The spacer utilizes it’s unique, patented Helix...
      Enhances fuel atomization, which improves combustion and engine efficiencyIncreases low end torque and fuel economy
      $140.07
    • (0 reviews)
      # mpn4511855796
      Chevy Impala 2003, Iridium Spark Plugs by Autolite®. 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 technology,...
      Iridium-enhanced center electrodePatented, platinum sidewire technology
      $6.48
    • (0 reviews)
      # 245515184
      Chevy Impala 2003, Billet Idler Arm by Howe Racing Enterprises®. Quantity: 1 per Pack. If you are looking to upgrade the steering system of your vehicle to make the most out of your vehicle’s performance, go with this high-grade...
      High quality at an affordable priceExpertly made from premium materials
      $110.15 - $112.36
    • (0 reviews)
      # 714496637
      Chevy Impala 2003, AD230 Alternator by Powermaster®. Pulley Type: With 6-Groove. Mounting: Side Mount. The large case unit (in a dual spool ear mounting) will also replace the small case CS-130D dual spool alternators with no...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $248.50 - $283.64
    • (0 reviews)
      # mpn470317898
      Chevy Impala 2003, Transfer Case Brace by PPE®. Change the way your prized possession performs on a harsh, unforgiving terrain by upgrading to superior transfer case components. Made from heavy-duty materials, these inherently strong...
      Thoughtfully designed to match your diesel engine needsMade to help enhance the performance of your vehicle
      $134.99
    • (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
    • (0 reviews)
      # 98991245
      Chevy Impala 2003, Touring™ 304 SS Cat-Back Exhaust System with Quad Rear Exit by Corsa®. Exhaust Type: Cat-Back. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 2.5". Exhaust System Sound: Moderate. The patented Reflective...
      $1,422.99 - $1,597.99




    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 Chevy Impala 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 Chevy Impala that has been waiting to be released!

    Guides & Articles

    Useful articles fast to read and guides easy to understand written by mechanics and car enthusiasts to turn your shopping experience with CARiD into a pleasure

    • Performance Brakes, Pads & Rotors
      August 10, 2018
      When Is It Time To Replace My Brake Lines?
      Hydraulic brake lines and hoses aren’t something most people think about when it comes to vehicle maintenance. That’s understandable, considering automakers...
      by Michael Grayen
    • Performance Brakes, Pads & Rotors
      August 09, 2018
      When Is It Time To Replace My Brake Calipers?
      Brake calipers, found only on disc brake systems, house pistons which use the force of hydraulic brake fluid to stop the vehicle. More specifically, those pistons...
      by Timothy Zahl
    • Suspension
      August 08, 2018
      When Is It Time To Replace My Vehicle's Springs?
      The springs on your vehicle are an integral part of its suspension system. Not only do springs keep all four corners suspended at a pre-determined, level ride height,...
      by Richard Reina
    • Suspension
      July 11, 2018
      When Is It Time To Replace My Suspension Bushings?
      Maybe you remember being pushed along in a wheelbarrow during childhood. The ride was bone-jarring - even with an air-filled rubber tire cushioning against the rough...
      by Timothy Zahl
    • Engines
      May 21, 2018
      How To Remove An Engine
      If you've grown tired of your engine's declining performance, inconsistent power, rough idle, exhaust smoke, knocking noises, rattles, and other maladies that plague...
      by Richard Reina
    • Engines
      May 09, 2018
      How Does An Internal Combustion Engine Work?
      An engine that uses liquid fuel to create energy, such as an internal combustion engine, is basically a large air pump. Cool air is drawn in, mixed with the fuel of...
      by Timothy Zahl
    • Engines
      May 02, 2018
      Glossary Of Engine External Parts
      Internal combustion engines are extremely complex and feature a wide array of components that rotate, pump, pressurize, or seal. Many of these components, while...
      by Timothy Zahl
    • Performance Engine Parts
      April 20, 2018
      What You Need When Rebuilding Or Replacing An...
      So you’ve decided to take on the project of rebuilding or replacing your vehicle’s engine. Modern internal combustion engines are quite complex – with a wide...
      by Richard Reina
    • Shift Knobs
      January 19, 2018
      Shopping Guide – Shift Knobs
      The knob at the end of your gearshift lever probably isn't something that most people notice when getting into your car or truck. But for a minimal cost, it can be. We...
      by Timothy Zahl
    • Running Boards
      November 29, 2017
      Shopping Guide - Running Boards
      Running boards date as far back as the automobile itself, being integrated into car and truck designs until falling out of favor after World War II. With the boom in...
      by Timothy Zahl
    • Off-Road Bumpers
      November 28, 2017
      Shopping Guide – Off Road Bumpers | Custom...
      There's a saying that advises out of all the paths you take in life, it's important to make sure a few of them are dirt. But while dirt can be found most anywhere you...
      by Timothy Zahl
    • Automotive Tools
      August 30, 2017
      What Special Tools Are Available For Exhaust...
      Exhaust work can be challenging. Old parts are usually corroded and difficult to separate, and new ones sometimes need minor fitment adjustments during installation....
      by Timothy Zahl

    Popular Products

    2003 Chevy Impala Performance Parts Reviews

    Average rating:  5  5 - 1 review
    5 of 5
    Easiest Strut Assembly
    Easy install, nice fit and ride.
    Posted by John Beaver (Sarver, PA) / March 27, 20182003 Chevy Impala
    Was this review helpful for you? Yes
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