2003 GMC Envoy Performance Parts

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    • (0 reviews)
      # mpn1136917
      GMC Envoy with LEV Standard / with LEV1 Standard 2003, OBDII Catalytic Converter by MagnaFlow®. Emissions: CARB compliant. Converter Configuration: Direct Fit. With Gasket. Catalytic Converter Overall Length: 47.25". If your car needs...
      $417.55
    • (0 reviews)
      # 62020670
      GMC Envoy / Envoy XL 2003, 1-Click Street Warrior Z26 Drilled and Slotted Rear Brake Kit by Power Stop®. Specially designed for high performance street drivers who demand shorter stops under the most extreme conditions, this brake kit...
      $211.74 - $297.02
    • (0 reviews)
      # 10115999
      GMC Envoy 2003, Rear Air to Coil Conversion Kit by Arnott®. Quantity: Sold as a Kit. Arnott has revolutionized the industry once again with our exclusive conversion kit. Elite coil spring kit delivers a seamless and error-free...
      $152.15
    • (1 review)
      # 377177600
      GMC Envoy / Envoy XL 4.2L 2003, 77 Series High-Flow Performance Aluminum Polished Cold Air Intake System by K&N®. The K&N high-flow performance air intake system is a free-flowing, mandrel-bent aluminum tube air induction system. The...
      Guaranteed to increase horsepowerDesigned to improve throttle response and engine sound
      $335.99
    • (6 reviews)
      # 187816989
      GMC Envoy XL 5.3L 2003, Evolution CTS2 Programmer by Edge®. Power Level 1: Transmission Tuning Only. Power Level 2: 5 HP & 5 lb-ft. Power Level 3: 10 HP & 10 lb-ft. Power Level 4: 15 HP & 15 lb-ft. Innovation and quality are part of...
      Offers performance-enhancing software revisions designed specifically for fuel economy, towing, semi-aggressive performance, and aggressive performanceSlim, Sleek Case Design
      $599.95
    • (0 reviews)
      # 522411929
      GMC Envoy XL 5.3L With Chevy Small Block 2003, Dragon Slayer Series Cylinder Heads by Brodix®. Economical out-of-the-box horsepower is what comes to mind with this new series of Dragon Slayer heads from BRODIX.
      225cc as-cast intake ports64 or 68cc CNC-ported combustion chambers
      $1,217.66 - $1,893.70
    • (0 reviews)
      # mpn1523561817
      GMC Envoy XL 5.3L 2003, Direct Fit Radiator with Fan by Flex-a-Lite®. Size: 38" x 18 1/2" x 7". Inlet Location: Upper Driver Side. Outlet Location: Lower Passenger Side. Fan Quantity: Dual. Fan Diameter: Dual 15". Number of Blades: 8....
      Makes for efficient heat transferPatented Flex-a-fit sidetank design
      $1,305.07
    • (0 reviews)
      # mpn358591360
      GMC Envoy / Envoy XL 2003, Saturday Night Special Torque Converter by TCI®. Lock-Up. The popular Saturday Night Special® Torque Converter delivers premium performance at a reasonable cost. A great choice for show cars and street rods,...
      400-500 RPM increase in stall over stockQuicker acceleration and improved low end power to run more smoothly
      $408.55
    • (3 reviews)
      # mpn1953525
      GMC Envoy 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
    • (1 review)
      # 1199060993
      GMC Envoy 2003, Iridium Spark Plugs by Autolite®. OE Style. 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
      $6.48 - $6.66
    • (0 reviews)
      # 357915562
      GMC Envoy / Envoy XL 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...
      SAE1045 forged steeling housingsBall studs forged from ultra-strong SAE4140 chromoly steel
      $66.52 - $69.23
    • (0 reviews)
      # mpn4487510606
      GMC Envoy / Envoy XL 2003, Alternator Pulley by Billet Specialties®. Finish: Polished. Designed utilizing the latest technology, this product by Billet Specialties features premium quality and will perform better than advertised....
      High quality at an affordable priceExpertly made from premium materials
      $26.95
    • (0 reviews)
      # 68586369
      GMC Envoy 2003, Rear Axle Shaft Kit by Yukon Gear & Axle®. Yukon Gear and Axle offers an extensive line of general replacement and high performance axles for passenger car, truck and SUV applications. High quality alloys and the latest...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $181.68 - $302.54
    • (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)
      # mpn1094456
      GMC Envoy 2003, MagnaFlow 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: 3". Exhaust System Sound: Moderate....
      $921.58
    • (0 reviews)
      # 188158818
      GMC Envoy 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...
      $292.25 - $651.65
    • (0 reviews)
      # 917044858
      GMC Envoy 2003, B8 5100 Series Front Driver or Passenger Side Monotube Snap Ring Grooved Body Ride Height Adjustable Strut with 0"-2.5" Front Lift Height by Bilstein®. Quantity: 1 per Pack. Bilstein B8 5100 shock absorbers are designed...
      $137.24
    • (0 reviews)
      # 635405308
      GMC Envoy / Envoy XL 4.2L 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,...
      Patented technology increases airflow 3 times more than conventional systemsEach system is tuned to maximize engine performance output
      $233.75
    • (1 review)
      # 583188754
      GMC Envoy XL 5.3L 2003, Insight Pro CTS2 Monitor by Edge®. Taking our award-winning Insight CTS2 and gave it the capability to store and program custom tunes into your vehicle from your favorite tuner. Using HP Tuners custom tuning...
      Insight Pro will act the same as a normal InsightAbility To Read Stock File
      $579.95
    • (0 reviews)
      # 522536982
      GMC Envoy XL 5.3L With Chevy Small Block 2003, IK™ Series Aluminum Cylinder Heads by Brodix®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality,...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $923.57 - $1,431.30
    • (0 reviews)
      # 262164491
      GMC Envoy XL 5.3L 2003, 300 Series High Flow Electric Water Pump by Meziere Enterprises®. Flow Rate: 55 GPM. Performance, sophistication and durability are by no means all the benefits you'll get if you purchase this product by Meziere...
      Suitable for street or drag strip use – 3000+ hour life expectancyHigh flow design provides 55 gallons per minute free flow rating
      +3
      $451.00 - $932.49
    • (0 reviews)
      # 87538633
      GMC Envoy 2003, Breakaway Torque Converter by TCI®. Lock-Up. The first step into serious high performance, the Breakaway® is a great torque converter for moderately modified street machines and weekend racers that are also used as...
      1,000+ RPM increase in stall over stockHarder launches and quicker acceleration
      $450.83 - $477.50
    • (2 reviews)
      # mpn2529859
      GMC Envoy 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 Bore design...
      Enhances fuel atomization, which improves combustion and engine efficiencyIncreases low end torque and fuel economy
      $132.95
    • (1 review)
      # 803908341
      GMC Envoy XL 4.2L 2003, PlasmaCore™ Inconel Electrode Pulse Nickel Spark Plugs by Pulstar®. With Resistor. Inconel-electrode Pulse Plugs. Designed specifically for most popular vehicles, PlasmaCore™ Inconel Electrode Pulse Plug...
      Increased horsepowerBetter torque
      $14.95 - $89.70
    • (0 reviews)
      # mpn3800683916
      GMC Envoy / Envoy XL 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...
      SAE1045 forged steeling housingsBall studs forged from ultra-strong SAE4140 chromoly steel
      $50.57
    • (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...
      Proudly Made in the USASealed absorbed glass mat (AGM) design that incorporates special glass fiber mats that contain the acid electrolyte between the lead plates, rather than a standard flooded (liquid) design
      $149.99 - $229.99
    • (0 reviews)
      # mpn470434574
      GMC Envoy with GM 8.5" Series Axle with 10 Bolt Cover with Coil Springs 2003, Rear Differential Cover by Mag-Hytec®. Boost your the defence level of your differential and ring and pinion set from off-road hazzards with this heavy-duty...
      Magnetic drain plug and anodized aluminum dipstick with magnetic insertO-rings require no gaskets or sealant
      $242.25
    • (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
    • (1 review)
      # 231304448
      GMC Envoy XL 5.3L 2003, Tuned Length Steel Short Tube Exhaust Headers by BBK®. Primary Tubing Diameter: 1.75". Emissions: CARB compliant. Header Style: Short Tube. Gain 15-20 dyno-proven horsepower at the rear wheels just by bolting on...
      $349.99 - $449.99




    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 GMC Envoy 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 GMC Envoy 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

    • Suspension Parts
      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
    • Engine Parts
      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
    • Engine Parts
      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
    • Engine Parts
      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
    • Automotive Tools
      August 24, 2017
      What Special Tools Are Available For Fuel...
      Maintenance and repair work on fuel systems must be done with precision, no matter what part of it you're working on. Tools specifically designed for use on fuel...
      by Timothy Zahl
    • Automotive Tools
      July 12, 2017
      What Special Tools Are Available For Driveline...
      The expression "heat and beat" applies to a lot of driveline repairs, meaning worn parts are often so difficult to separate that one must use a blowtorch and great...
      by Michael Grayen
    • Batteries & Power
      May 22, 2017
      High-End Audio Demands Its Own Battery Source
      When you're driving and headlights start to dim because a high-powered stereo is cranking, that means the deep bass you hear is causing total vehicle electrical draw...
      by Timothy Zahl

    Popular Products

    2003 GMC Envoy Performance Parts Reviews

    Average rating:  5  5 - 2 reviews
    5 of 5
    Love It
    Installed my lift kit no problems! Great price on time delivery, will definitely order from you again!
    Posted by Michael Williams (Katy, TX) / April 25, 20182004 GMC Envoy
    Was this review helpful for you? Yes
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