2003 Cadillac Escalade EXT Performance and Racing Products
Find Your Specific 2003 Cadillac Escalade EXT Performance and Racing Products
Below you will find various in-demand Cadillac Performance and Racing Products, components and accessories for your 2003 Escalade EXT. Advance Auto Parts has popular Escalade EXT parts like Performance Engines, Performance Ignition Products, Performance Air Filters and more. You’ll also find aftermarket and OEM Performance and Racing Products for other Escalade EXT model years including
2005,
2006,
2007,
2008,
2009,
2010,
2011,
2012,
2013 and more. Select a category of 2003 Cadillac Escalade EXT Performance and Racing Products below and start saving instantly.
Popular 2003 Cadillac Escalade EXT Performance and Racing Products Categories
Essential Performance and Racing Products for 2003 Cadillac Escalade EXTs
K&N – Premium Oil Filter: Ideal for Synthetic & Conventional Oil, Protects Your Engine (Part No.HP-1007)
from
$17.99
K&N premium oil filters are meticulously engineered to offer outstanding filtration and engine protection. The heavy-duty canister is engineered to be exceptionally durable, and a one-inch welded hex nut can be used for quick and easy filter removal. Each filter is specifically designed to withstand the service intervals recommended by vehicle manufacturers.
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Product Features:
- HIGH FLOW RATES: Designed to provide exceptional flow rates and a consistent flow of oil to your engine
- VERSATILE COMPATIBILITY: Designed to operate with all synthetic, conventional, and blended motor oils
- PROTECT YOUR ENGINE: Pleated synthetic-blend filtration media removes most harmful contaminants
- EXTENSIVELY TESTED: Laboratory tested to ensure excellent capacity and burst strength
- EASY TO REMOVE: Fast and easy Wrench-Off removal
- HEAVY-DUTY CONSTRUCTION: Heavy-duty canister for outstanding durability
- HIGH CAPACITY: Withstand the longer service intervals now recommended by some vehicle manufacturers
MSD Ignition – Wire Set; Black Super Conductor; LS-1 Truck Engines; 99-on (Part No.32823)
from
$118.99
The MSD 8.5mm super conductor wire is the performance wire. Engineered from the inside out, the 8.5 offers everything you have ever wanted in a wire; incredibly low resistance without electronic interference. In a single 12 inch length of super conductor wire there is only 40 – 50 ohms of resistance. That is the lowest resistance of any helically wound wire. To accomplish this, we use a copper alloy conductor due to it’s great voltage carrying capabilities. The low resistance results in less loss in spark energy so more reaches the spark plug. The conductor is wound extremely tight around a special center core. So tight in fact, that there is over 40 feet of conductor wrapped into a single foot of plug wire. This winding procedure, combined with a ferro-magnetic impregnated center core, produces an extremely effective electro magnetic interference (EMI) or choke. This choke, or suppression capability, keeps the EMI inside the wire where it cannot interfere with other electronics on your vehicle. The outer sleeve that surrounds the conductor assembly is just as impressive. A proprietary blend of silicone and synthetic material produce a sleeve that is highly resistant to high heat as well as abrasion and tears. Available in universal kits and bulk lengths.
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Product Features:
- Bolt-on Performance
- Custom Fit For Make And Model Listed
- Wires Are Pre-Cut To Exact Specifications
Bully Dog – 50-State Gas Tuner: Boost Performance, Fuel Economy, & Diagnostics (Part No.40410)
from
$399.99
The GT Platinum Gas is four products in one; a vehicle engine tuner, monitor, gauge and diagnostic device all in a single unit. The GT dramatically improves the utility of your vehicle by increasing horsepower, improving fuel economy and providing a comprehensive set of monitoring features and diagnostic functions. This product is incomparable to other tuning products because it has the largest feature set and the widest range of vehicle applications from a single product part number.
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Product Features:
- HEADS UP DISPLAY – Monitor over 15 performance parameters at a glance with a dynamic LCD display mounted on a pillar, window, or dash. User set daytime and nighttime driving modes
- MULTIPLE PRELOADED TUNES – Access four preloaded tunes with the touch of a few buttons to maximize performance in any situation.
- CODE CLEARING – Diagnose and clear trouble codes to ensure proper engine operation.
- Reads and Erases Diagnostic Trouble Codes
- Display Over 15 Vehicle Parameters
- Installation Is Easy-10-20 Minutes
- Free Internet Updates And Upgrades
- 30 Day Money Back Guarantee
Mr. Gasket – Ls1 Late Thermostat (Part No.6367)
from
$36.99
Designed to open at 160 degrees every time, regardless of engine rpm, and it’s high-flow design and brass and copper construction eliminate the damaging effects of cycling when you’re stuck in stop-and-go traffic. It includes the rubber gasket and has a pressure relief valve.
Product Features:
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Product Features:
- Opens sooner than stock at 160 degrees
- High flow design for performance applications
- Includes rubber o-ring seal/gasket
- Incorporates pressure relief valve
Energy Suspension – Transmission Mount (Part No.3.1129G)
from
$90.99
A true performance application component for cars, trucks, hot rods, racing/competition, yet popularly used for street vehicles when more horsepower is added. Soft running enough to absorb vibrations for street use yet rugged for racing use. Helps control torque on high performance vehicles. Maintains proper drive shaft angle to help prevent early wear and unexpected power train damage. Replaces the original, short lived and typically too-soft rubber mounts and outdates those hard-running metal transmission mounts. Resistant to under vehicle fluid oils, coolants and road contaminants. Made of Energy’s Hyper-Flex performance polyurethane and heavy duty hardware – for added durability.
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Product Features:
- Unique Safety Interlock Design
- Impervious to Vehicle Oils and Chemicals
- Strong Enough Too Handle High Performance
Energy Suspension – SwyBarBshKt (Part No.3.5215R)
from
$27.99
SwyBarBshKt
aFe POWER – Momentum GT Cold Air Intake: Gain up to 8 Horsepower! Dry Air Filter For Easy Maintenance (Part No.51-74102)
from
$454.99
Bringing you the next generation of intakes, the Momentum GT sealed air intake system is designed using the most up-to-date engineering tools and techniques to provide you with the perfect blend of power and protection. This intake system is superior in every way. From the one-piece sealed housing with a tire tread top, to the massive air filter and premium hardware, we spared no expense to give you the best intake on the market.
Product Features:
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Product Features:
- Pro DRY S Filter Media
- 360 deg. Radial Flow Air Filter
- 3 Layer Cotton/Synthetic Gauze Media
- Washable And Reusable
aFe POWER – Momentum GT Cold Air Intake: Gain up to 13 Horsepower! Oiled Air Filter For Maximum Airflow (Part No.54-74103)
from
$440.99
Bringing you the next generation of intakes, the Momentum GT sealed air intake system is designed using the most up-to-date engineering tools and techniques to provide you with the perfect blend of power and protection. This intake system is superior in every way. From the one-piece sealed housing with a tire tread top, to the massive air filter and premium hardware, we spared no expense to give you the best intake on the market.
Product Features:
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Product Features:
- Pro 5R Filter Media
- 5-Layer Progressive Cotton Gauze Media
- Washable And Reusable
- Huge 5 in. Flange w/Inverted Top Air Filter
B & M – TRAVELER CONVERTER (Part No.70431)
from
$899.99
Torque Converter – Traveler Converter with 2000 RPM Stall Speed APPLICATION: GM 4L80E The Traveler converter is intended for use in motorhomes, tow vehicles or other heavy duty applications where a slightly higher stall speed is helpful in getting the vehicle moving. The Traveler is also stronger than a stock converter and has been internally modified to provide about 300 rpm more stall speed for help in initial acceleration without sacrificing normal highway operation. It is manufactured to B&M’s exacting tolerances for long life. Provides slightly higher stall speed than stock to improve pulling power at low speeds. Application: GM 4L80E Please download the attached 4L80E torque converter installation tips. New Precision pump drive tube Heavy duty needle bearings Furnace brazed New sprag and rollers in stator Pressure tested Fully balanced.
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Product Features:
- Ideal For Motor Homes
- Ideal For Towing Applications
- Precision Pump Drive Tube
- Heavy Duty Needle Bearings
- Furnace Brazed
- New Sprag and Rollers In Stator
- Pressure Tested
- Fully Balanced
Energy Suspension – SwyBarBshKt (Part No.3.5215G)
from
$27.99
SwyBarBshKt
Energy Suspension – SwyBarBshKt (Part No.3.5214R)
from
$57.99
SwyBarBshKt
Hays – Flywheel: GM Ls-1 30Lb Steel (Part No.10-730)
from
$515.99
Hays aluminum flywheels are manufactured from certified billet material that will not break up under the stress of high RPM and severe punishment of racing. Features replaceable steel surface insert. Precision balanced to either neutral (internal) or Detroit (external) specifications. Meets SFI specification 1.1 for racing.
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Product Features:
- Certified Billet Material
- Borg and Beck Clutch Pattern
- Long-Style Clutch Pattern
- Ring Gear Securely Mounted To Prevent Spinning
Dynomax – Exhaust Tail Pipe (Part No.55114)
from
$124.99
Made from quality materials for durability, DynoMax pipe is manufactured with precision benders and fixture checked to ensure a precise fit for quick and easy installation.
Product Features:
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Product Features:
- IMPROVED FLOW CAPACITY : Mandrel bends (where applicable) improve flow capacity over traditional bends while increased pipe diameter from OE sizes increases flow and power
- DESIGNED TO PERFORM : Fixture checked to ensure a precise fit for quick and easy installation
- AVAILABLE IN DIFFERENT SIZES : Offered in a variety of styles and sizes for a quality vehicle repair
- PREMIUM MATERIALS: Made from aluminized steel for durability and long life
- BETTER TOGETHER : Use premium DynoMax accessories when installing DynoMax mufflers and exhaust systems for a complete performance exhaust system upgrade
Dynomax – Exhaust Tail Pipe (Part No.55514)
from
$72.99
Made from quality materials for durability, DynoMax pipe is manufactured with precision benders and fixture checked to ensure a precise fit for quick and easy installation.
Product Features:
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Product Features:
- IMPROVED FLOW CAPACITY : Mandrel bends (where applicable) improve flow capacity over traditional bends while increased pipe diameter from OE sizes increases flow and power
- DESIGNED TO PERFORM : Fixture checked to ensure a precise fit for quick and easy installation
- AVAILABLE IN DIFFERENT SIZES : Offered in a variety of styles and sizes for a quality vehicle repair
- PREMIUM MATERIALS: Made from stainless steel for durability and long life
- BETTER TOGETHER : Use premium DynoMax accessories when installing DynoMax mufflers and exhaust systems for a complete performance exhaust system upgrade
Richmond Gear – RngPnn (Part No.49-0041-1)
from
$342.99
RngPnn
Motive Gear – Performance Differential Ring and Pinion (Part No.G885342IFS)
Flowmaster Inc. – 50 Big Block Muffler – 3.00 Dual In / 3.50 Offset Out – Mild Sound (Part No.530513)
from
$299.99
The 50 Series Big Block muffler is made for more than just big cubic inch engine applications. Its large case size with internal tuning chamber provides mileage and power gains along with maximum sound control for a quiet interior tone, even under heavy loads. Well suited to heavy duty vehicles such as full size trucks, SUV’s, RVs, and tow vehicles. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
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B & M – Automatic Shifter, Quicksilver 4 Speed (Part No.80683)
from
$483.99
The B&M Quicksilver features a ratcheting action for positive shifts, Chrome Knob, neutral safety switch, NHRA/IHRA approved Reverse Lockout. Fits Most 3 and 4 speeds.
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Product Features:
- Universal Floor Mount Application
- Base Trimmed For Custom Fit
- Cable Operated
- Quick Installation
- Accurate Shifting
B & M – Automatic Shifter – Megashifter – Universal (Part No.80690)
from
$527.99
The Classic BAndM Megashifter features a Ratcheting action, ensuring positive shifts. Chrome Knob, Neutral safety switch And NHRA/IHRA Approved reverse lockout. Fits Most 3 And 4 speeds.
Product Features:
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Product Features:
- Universal Floor Mount
- Base Can Be Trimmed-Custom Fit
- Cable Operated
- Quick Installation
- Accurate Shifting
B & M – Automatic Shifter, Light Truck Megashifter (Part No.80680)
from
$527.99
The B&M Megashifter has it all, form, function and classic style. This all adds up to bring you a quality shifter that’s been one of the most popular automatic shifters of all time. The light truck Megashifter is better suited for truck and bench seat applications with its overall height of 14.85-inches tall (2.25-inches taller than #80690 Megashifter.) The positive ratcheting action won’t allow you to over-shift and miss a gear at that critical moment, along with the reverse lockout feature meets NHRA/IHRA safety rules for those weekend grudge races at the track, while the look and feel of the T-handle and accordion style shift boot really shows off its racing heritage. Other features include a black console that you can trim to match the contour of your vehicle’s floor, 5-foot long shifter cable, cable brackets, transmission shift levers, chrome plated top plate with lighted gear indicator and everything needed for an easy at home installation. An optional T-handle with a 12-volt button is available separately for actuating a trans-brake, nitrous oxide or other accessories for the hard-core performance enthusiast. This shifter fits most popular Chrysler, Ford and GM 3 and 4-speed automatic transmissions. Note: AOD transmissions require optional kit #40496, GM 4L60E through 4L85E transmissions with PRNDL switch will require optional kit #70499. Overall Dimensions – 14.9L x 6.4W x 14.8H
Product Features:
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Product Features:
- Universal Floor Mount Application
- Cable Operated
- Quick Installation
- Accurate Shifting
- NHRA/IHRA Reverse Lockout Meets Requirements
- Use w/Reverse Pattern Valve Body
- Includes Neutral Safety Switch
- Includes Backup Light Switch
Spectre – Cold Air Intake Kit Engineered to Add Horsepower & Torque (Part No.9918)
from
$199.99
Spectre air intake systems are designed to get more horsepower and torque from your vehicle while working to protect your engine from harmful debris. This air intake system comes with a washable, reusable low restriction Spectre air filter, polished aluminum intake tubing and a black powder coated 2-piece heat shield to help prevent heated engine air from entering the intake inlet. Spectre air intakes come with velocity stack, coupler, stainless steel clamps, edge trim, and all necessary hardware for an OE fit and finish. The air filter mounts on the driver side.
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Product Features:
- DESIGNED TO INCREASE HORSEPOWER AND TORQUE: Dyno-tested with up to 50% more airflow than restrictive factory box air filter and intake tube
- BETTER TOWING: Improves acceleration and uphill performance when towing by improving throttle response
- IMPROVED ENGINE SOUND: Hear the power under the hood
- WORLD CLASS PROTECTION: Pushing the limits of engine protection by protecting your engine from harmful contaminants and debris
- EASY MAINTENANCE: No filter cleaning required for up to 100,000 miles
- EASY TO INSTALL: Bolt-on power in less than an hour with basic hand tools- Spectre air intake systems are one of the easiest ways to increase horsepower
- HIGH PERFORMANCE AIR FILTER: Advanced oiled synthetic filter design helps protect your engine against damaging contaminants
- WILL NOT VOID VEHICLE WARRANTY
- Product might not be available in all states due to local laws.
K&N – Cold Air Intake: Adds Up To 10 Horsepower, With Million Mile Air Filter (Part No.77-3070KP)
from
$472.99
K&N air intake systems are engineered for increased performance, outstanding durability, and sleek aesthetics – and are available in an assortment of finishes and powder coatings. K&N’s state-of-the-art High-Flow Air Filter helps to shield your engine from contaminants, while a meticulously engineered aerodynamic tube design contributes to a guaranteed increase in horsepower and torque. K&N air intake systems are designed to improve acceleration, towing, and throttle response while providing world class protection for your engine. Our intakes are dyno-tested and provide up to 50% more airflow compared to OEM intake systems. K&N intakes are easy to install and maintain with air filter cleaning required only every 100,000 miles.
Product Features:
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Product Features:
- GUARANTEED INCREASE IN HORSEPOWER: Dyno-tested with up to 50% more airflow than restrictive factory box air filter and intake tube
- BETTER TOWING: Improves acceleration and uphill performance when towing by improving throttle response.
- IMPROVED ENGINE SOUND: Hear the power under the hood.
- WORLD CLASS PROTECTION: Pushing the limits of engine protection by protecting your engine from harmful contaminants
- EASY MAINTENANCE: No filter cleaning required for up to 100,000 miles
- EASY TO INSTALL: Bolt-on power in less than an hour with basic hand tools. K&N air intake systems are one of the easiest ways to guarantee an increase in horsepower.
- DYNO TESTED: Dyno-tested for a guaranteed increase in horsepower and acceleration with no ECU tune required
- HIGH QUALITY: Made in America.
Spectre – Cold Air Intake Kit Engineered to Add Horsepower & Torque (Part No.9900)
from
$199.99
Spectre air intake systems are designed to get more horsepower and torque from your vehicle while working to protect your engine from harmful debris. This air intake system comes with a washable, reusable low restriction Spectre air filter, polished aluminum intake tubing and a black powder coated 2-piece heat shield to help prevent heated engine air from entering the intake inlet. Spectre air intakes come with velocity stack, coupler, stainless steel clamps, edge trim, and all necessary hardware for an OE fit and finish. The air filter mounts on the driver side.
Product Features:
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Product Features:
- DESIGNED TO INCREASE HORSEPOWER AND TORQUE: Dyno-tested with up to 50% more airflow than restrictive factory box air filter and intake tube
- BETTER TOWING: Improves acceleration and uphill performance when towing by improving throttle response
- IMPROVED ENGINE SOUND: Hear the power under the hood
- WORLD CLASS PROTECTION: Pushing the limits of engine protection by protecting your engine from harmful contaminants and debris
- EASY MAINTENANCE: No filter cleaning required for up to 100,000 miles
- EASY TO INSTALL: Bolt-on power in less than an hour with basic hand tools- Spectre air intake systems are one of the easiest ways to increase horsepower
- HIGH PERFORMANCE AIR FILTER: Advanced oiled synthetic filter design helps protect your engine against damaging contaminants
- WILL NOT VOID VEHICLE WARRANTY
K&N – Cold Air Intake: Adds Up To 10 Horsepower, With Million Mile Air Filter (Part No.71-3058)
from
$524.99
The K&N 71-3058 Blackhawk Induction Air Intake System is a free-flowing, mandrel-bent aluminum tube air intake system that is guaranteed to gain power. It replaces your vehicle’s restrictive factory air filter and air intake housing. This low restriction air intake allows your engine to inhale a larger amount of air than it would from the stock air intake. More air means more power and acceleration. This K&N Blackhawk Induction Air Intake System comes with black components including the K&N high-flow air filter and heat shield. The attractive textured black powder-coated finish tube features an engraved K&N plate welded on to which gives it a clean, high-performance look under the hood. The intake tube accommodates the factory mass air sensor, air temperature sensor and crank case vent hose. The oversized cone shaped air filter is made from an oil-free synthetic filter media that can be used for up to 100,000 miles before cleaning is needed depending on driving conditions. This air intake is relatively easy to install usually in 90 minutes or less using the existing factory mounting points using commonly available tools. Some K&N Blackhawk Induction Systems are not legal for sale or use in California and other states adopting California emission standards while others are 50 state legal. View the 71-3058 vehicle applications to determine the legal status for each vehicle.
Product Features:
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Product Features:
- GUARANTEED INCREASE IN HORSEPOWER: Dyno-tested with up to 50% more airflow than restrictive factory box air filter and intake tube
- BETTER TOWING: Improves acceleration and uphill performance when towing by improving throttle response.
- IMPROVED ENGINE SOUND: Hear the power under the hood.
- WORLD CLASS PROTECTION: Pushing the limits of engine protection by protecting your engine from harmful contaminants
- EASY MAINTENANCE: No filter cleaning required for up to 100,000 miles
- EASY TO INSTALL: Bolt-on power in less than an hour with basic hand tools. K&N air intake systems are one of the easiest ways to guarantee an increase in horsepower.
- DYNO TESTED: Dyno-tested for a guaranteed increase in horsepower and acceleration with no ECU tune required
- HIGH QUALITY: Made in America.
Spectre – Spectre Replacement Air Filter (Part No.HPR8755)
from
$42.49
This Spectre OEM replacement air filter is an easy to install performance option for the stock panel air filter in multiple Chevy and GM truck applications. With its HPR (High Performance Replacement) synthetic air filter media, this panel air filter has been designed to provide more horsepower and quicker acceleration by allowing more air flow into your engine than ordinary paper filters. Engineered to fit in the stock air box, this air filter is easy to install and has been engineered with a sealing edge specific to your air box to insure a proper seal for great engine protection.
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Product Features:
- HPR OE Replacement Air Filter
- High flow replacement filter designed to fit perfectly in your stock air box
- Engineered for increased flow and greater performance
- Fits multiple Chevy and GM truck applications
- Factory pre-oiled and ready to use
- Easy to install with no special tools or skills required
K&N – Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration (Part No.33-2135)
from
$68.99
K&N washable, reusable High-Flow Air Filters feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable and engineered to last for the entire lifespan of your vehicle. K&N drop-in replacement filters are designed to install easily into your factory air box. Upgrade today and start enjoying superior airflow and superior performance from K&N’s most popular product!
Product Features:
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Product Features:
- ENGINEERED POWER: State-of-the-art air filter media is designed to increase horsepower and acceleration as well as improve overall engine performance
- RUGGED CONSTRUCTION: K&N Air Filters are manufactured with durable, premium materials and state-of-the-art construction methods to last a lifetime
- 4 LAYERS OF PROTECTION: Multiple layers of premium cotton gauze treated with a specially-designed tacking agent work together to create an intricate mesh of engine filter media that is designed to block and trap harmful contaminants
- CLEAN ONCE EVERY 5 YEARS: Engine air filter only needs cleaning every 75,000 miles under normal highway driving conditions (5 years based on the average miles driven per year of 15,000 miles)
- REUSABLE K&N FILTER SAVES YOU MONEY: A K&N washable, reusable air filter will save you up to $125 vs. purchasing multiple disposable filters (compared to MSRP in USD of corresponding OE filters for 200,000 miles of highway driving)
- EASY INSTALLATION: K&N Air Filters are pre-oiled and ready to drop into your factory air box- they are one of the easiest and most cost-effective vehicle upgrades for quick performance gains
- REDUCES WASTE: Over 200 million disposable air filters and their packaging waste wind up in landfills each year- reusable filters help reduce waste in our landfills
Upgrade your 2003 Cadillac Escalade EXT with Top-Quality Performance and Racing Products
When it comes to maintaining or upgrading your 2003 Cadillac Escalade EXT, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Cadillac or enhancing its overall performance, Performance and Racing Products are key to keeping your Escalade EXT functioning at its best. At Advance Auto Parts, we offer a wide selection of 33 Performance and Racing Products for the 2003 Cadillac Escalade EXT, designed to meet your needs without breaking the bank.
From
Performance Engine
replacements to
Performance Ignition Products
upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.
Affordable Prices and Wide Selection
Shopping for Performance and Racing Products for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Performance and Racing Products for your 2003 Cadillac Escalade EXT at great prices.
Our Performance and Racing Products inventory for this model
ranges from just $17.99 to $899.99, with
an average price of $282.13.
Our 33 Performance and Racing Products in stock come from 13 trusted brands, so you’re sure to find the right part for your 2003 Cadillac Escalade EXT without overspending.
Top Brands and High Customer Satisfaction
Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 2003 Cadillac Escalade EXT, we stock popular OEM and aftermarket Performance and Racing Products from top names
like K&N, Spectre, B & M, and more.
K&N Performance and Racing Products
start at just $17.99 and boast an impressive 4.8 stars average rating from customers.
Spectre and B & M also bring quality to the table, with Performance and Racing Products available starting at $42.49, and at an average 4.2 stars rating.
With 253 customer reviews and counting, our 2003 Cadillac Escalade EXT Performance and Racing Products have a strong track record of reliability, ensuring you can trust your purchase.
Explore Related Parts and More
While you’re here, don’t forget to check out other essential categories that go hand in hand with Performance and Racing Product upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants
and more to make sure your 2003 Cadillac Escalade EXT is always ready to roll. We’re committed to providing you with everything you need to keep your Escalade EXT in top shape, all in one place.
Start shopping confidently below for your 2003 Cadillac Escalade EXT!
Best-Selling Performance Engines for 2003 Cadillac Escalade EXTs
Enhance the driving experience in your Cadillac with 2 quality Performance Engine components, starting at $36.99.
Mr. Gasket – Ls1 Late Thermostat (Part No.6367)
from
$36.99
Designed to open at 160 degrees every time, regardless of engine rpm, and it’s high-flow design and brass and copper construction eliminate the damaging effects of cycling when you’re stuck in stop-and-go traffic. It includes the rubber gasket and has a pressure relief valve.
Product Features:
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Product Features:
- Opens sooner than stock at 160 degrees
- High flow design for performance applications
- Includes rubber o-ring seal/gasket
- Incorporates pressure relief valve
B & M – TRAVELER CONVERTER (Part No.70431)
from
$899.99
Torque Converter – Traveler Converter with 2000 RPM Stall Speed APPLICATION: GM 4L80E The Traveler converter is intended for use in motorhomes, tow vehicles or other heavy duty applications where a slightly higher stall speed is helpful in getting the vehicle moving. The Traveler is also stronger than a stock converter and has been internally modified to provide about 300 rpm more stall speed for help in initial acceleration without sacrificing normal highway operation. It is manufactured to B&M’s exacting tolerances for long life. Provides slightly higher stall speed than stock to improve pulling power at low speeds. Application: GM 4L80E Please download the attached 4L80E torque converter installation tips. New Precision pump drive tube Heavy duty needle bearings Furnace brazed New sprag and rollers in stator Pressure tested Fully balanced.
Product Features:
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Product Features:
- Ideal For Motor Homes
- Ideal For Towing Applications
- Precision Pump Drive Tube
- Heavy Duty Needle Bearings
- Furnace Brazed
- New Sprag and Rollers In Stator
- Pressure Tested
- Fully Balanced
Most Popular 2003 Cadillac Escalade EXT Performance Ignition Products
Customize your Cadillac with 1 Performance Ignition Products products
like Performance Spark Plug Wires, all
priced under $118.99.
MSD Ignition – Wire Set; Black Super Conductor; LS-1 Truck Engines; 99-on (Part No.32823)
from
$118.99
The MSD 8.5mm super conductor wire is the performance wire. Engineered from the inside out, the 8.5 offers everything you have ever wanted in a wire; incredibly low resistance without electronic interference. In a single 12 inch length of super conductor wire there is only 40 – 50 ohms of resistance. That is the lowest resistance of any helically wound wire. To accomplish this, we use a copper alloy conductor due to it’s great voltage carrying capabilities. The low resistance results in less loss in spark energy so more reaches the spark plug. The conductor is wound extremely tight around a special center core. So tight in fact, that there is over 40 feet of conductor wrapped into a single foot of plug wire. This winding procedure, combined with a ferro-magnetic impregnated center core, produces an extremely effective electro magnetic interference (EMI) or choke. This choke, or suppression capability, keeps the EMI inside the wire where it cannot interfere with other electronics on your vehicle. The outer sleeve that surrounds the conductor assembly is just as impressive. A proprietary blend of silicone and synthetic material produce a sleeve that is highly resistant to high heat as well as abrasion and tears. Available in universal kits and bulk lengths.
Product Features:
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Product Features:
- Bolt-on Performance
- Custom Fit For Make And Model Listed
- Wires Are Pre-Cut To Exact Specifications
Top Picks for 2003 Cadillac Escalade EXT Performance Air Filters
Upgrade Cadillac Escalade EXTs with top-quality Performance Air Filters parts, including 2 OEM and aftermarket selections for your 2003 model.
K&N – Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration (Part No.33-2135)
from
$68.99
K&N washable, reusable High-Flow Air Filters feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable and engineered to last for the entire lifespan of your vehicle. K&N drop-in replacement filters are designed to install easily into your factory air box. Upgrade today and start enjoying superior airflow and superior performance from K&N’s most popular product!
Product Features:
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Product Features:
- ENGINEERED POWER: State-of-the-art air filter media is designed to increase horsepower and acceleration as well as improve overall engine performance
- RUGGED CONSTRUCTION: K&N Air Filters are manufactured with durable, premium materials and state-of-the-art construction methods to last a lifetime
- 4 LAYERS OF PROTECTION: Multiple layers of premium cotton gauze treated with a specially-designed tacking agent work together to create an intricate mesh of engine filter media that is designed to block and trap harmful contaminants
- CLEAN ONCE EVERY 5 YEARS: Engine air filter only needs cleaning every 75,000 miles under normal highway driving conditions (5 years based on the average miles driven per year of 15,000 miles)
- REUSABLE K&N FILTER SAVES YOU MONEY: A K&N washable, reusable air filter will save you up to $125 vs. purchasing multiple disposable filters (compared to MSRP in USD of corresponding OE filters for 200,000 miles of highway driving)
- EASY INSTALLATION: K&N Air Filters are pre-oiled and ready to drop into your factory air box- they are one of the easiest and most cost-effective vehicle upgrades for quick performance gains
- REDUCES WASTE: Over 200 million disposable air filters and their packaging waste wind up in landfills each year- reusable filters help reduce waste in our landfills
Spectre – Spectre Replacement Air Filter (Part No.HPR8755)
from
$42.49
This Spectre OEM replacement air filter is an easy to install performance option for the stock panel air filter in multiple Chevy and GM truck applications. With its HPR (High Performance Replacement) synthetic air filter media, this panel air filter has been designed to provide more horsepower and quicker acceleration by allowing more air flow into your engine than ordinary paper filters. Engineered to fit in the stock air box, this air filter is easy to install and has been engineered with a sealing edge specific to your air box to insure a proper seal for great engine protection.
Product Features:
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Product Features:
- HPR OE Replacement Air Filter
- High flow replacement filter designed to fit perfectly in your stock air box
- Engineered for increased flow and greater performance
- Fits multiple Chevy and GM truck applications
- Factory pre-oiled and ready to use
- Easy to install with no special tools or skills required
In-Demand Performance Exhaust Products for 2003 Cadillac Escalade EXTs
Select from 2 premium Performance Exhaust Products parts for your 2003 Cadillac Escalade EXT, with prices ranging from $124.99 to $299.99.
Flowmaster Inc. – 50 Big Block Muffler – 3.00 Dual In / 3.50 Offset Out – Mild Sound (Part No.530513)
from
$299.99
The 50 Series Big Block muffler is made for more than just big cubic inch engine applications. Its large case size with internal tuning chamber provides mileage and power gains along with maximum sound control for a quiet interior tone, even under heavy loads. Well suited to heavy duty vehicles such as full size trucks, SUV’s, RVs, and tow vehicles. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
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Dynomax – Exhaust Tail Pipe (Part No.55114)
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$124.99
Made from quality materials for durability, DynoMax pipe is manufactured with precision benders and fixture checked to ensure a precise fit for quick and easy installation.
Product Features:
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Product Features:
- IMPROVED FLOW CAPACITY : Mandrel bends (where applicable) improve flow capacity over traditional bends while increased pipe diameter from OE sizes increases flow and power
- DESIGNED TO PERFORM : Fixture checked to ensure a precise fit for quick and easy installation
- AVAILABLE IN DIFFERENT SIZES : Offered in a variety of styles and sizes for a quality vehicle repair
- PREMIUM MATERIALS: Made from aluminized steel for durability and long life
- BETTER TOGETHER : Use premium DynoMax accessories when installing DynoMax mufflers and exhaust systems for a complete performance exhaust system upgrade
Most Sold 2003 Cadillac Escalade EXT Performance Oil Filters
Explore our best-selling Cadillac parts for the 2003 Escalade EXT among 1 OEM and aftermarket options starting from $17.99.
K&N – Premium Oil Filter: Ideal for Synthetic & Conventional Oil, Protects Your Engine (Part No.HP-1007)
from
$17.99
K&N premium oil filters are meticulously engineered to offer outstanding filtration and engine protection. The heavy-duty canister is engineered to be exceptionally durable, and a one-inch welded hex nut can be used for quick and easy filter removal. Each filter is specifically designed to withstand the service intervals recommended by vehicle manufacturers.
Product Features:
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Product Features:
- HIGH FLOW RATES: Designed to provide exceptional flow rates and a consistent flow of oil to your engine
- VERSATILE COMPATIBILITY: Designed to operate with all synthetic, conventional, and blended motor oils
- PROTECT YOUR ENGINE: Pleated synthetic-blend filtration media removes most harmful contaminants
- EXTENSIVELY TESTED: Laboratory tested to ensure excellent capacity and burst strength
- EASY TO REMOVE: Fast and easy Wrench-Off removal
- HEAVY-DUTY CONSTRUCTION: Heavy-duty canister for outstanding durability
- HIGH CAPACITY: Withstand the longer service intervals now recommended by some vehicle manufacturers
Top-Rated Performance and Racing Products Brands For Your 2003 Cadillac Escalade EXT
Shop for the best-rated brands offering Performance and Racing Products and other products for your 2003 Cadillac Escalade EXTs. Below you’ll find some of our best rated Performance and Racing Products from K&N, Spectre, and B & M, and more. Performance and Racing Products from these brands that fit a 2003 Escalade EXT start at just $17.99 and are rated as high as 4.8 stars. OEM and aftermarket Performance and Racing Products don’t get more top quality, durable, and affordable than from the brands below.
Popular K&N 2003 Cadillac Escalade EXT Performance and Racing Products
When it comes to maintaining or upgrading your 2003 Cadillac Escalade EXT, using quality Performance and Racing Products is essential to ensure durability and a perfect fit. K&N ticks all of those boxes. We offer a wide selection of K&N Performance and Racing Products, specifically designed for the 2003 Cadillac Escalade EXT. With over 2 K&N brand Performance and Racing Products in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $17.99, with an average price of just $43.49. Plus, with over 139 customer reviews and an average rating of 4.8 stars, you can trust that our K&N Performance and Racing Products will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.
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$17.99
(50)
Premium Oil Filter: Ideal for Synthetic & Conventional Oil, Protects Your Engine
“It’s expensive but you can’t beat it plus it has the socket attachment so you can get a nice tight seal in the tight space where the oil filter is loc”
from
$68.99
(89)
Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration
“5 Star Review”
Popular Spectre 2003 Cadillac Escalade EXT Performance and Racing Products
Spectre auto parts is one of the highest quality Performance and Racing Product brands in the market. Any 2003 Cadillac Escalade EXT owner should feel confident when installing genuine Spectre parts in their vehicle. To ensure the best fit and performance for your 2003 Escalade EXT, Advance Auto Parts carries a full inventory of 3 Spectre Performance and Racing Products. Plus you will be keeping your Cadillac in peak condition while saving money because prices on these Spectre Performance and Racing Products range from $42.49 to $199.99, plus, with more than 78 customer reviews and an impressive 4.2 stars average rating, you can be confident the Fram Performance and Racing Products below will deliver on both quality and value.
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$199.99
(53)
Cold Air Intake Kit Engineered to Add Horsepower & Torque
“This kit was an easy install only took about an hour and 1/2. Anyone can do it. The pictures should be better in the instructions to show where the fi”
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$42.49
(24)
Spectre Replacement Air Filter
“Great fitment and notice some better fuel economy! I highly recommend it.”
FAQs for 2003 Cadillac Escalade EXT Performance and Racing Products
Which Performance and Racing Products are best-sellers for 2003 Cadillac Escalade EXTs?
Out of 33 Performance and Racing Products that fit 2003 Cadillac Escalade EXTs, the following parts are the top sellers:
- Spectre Replacement Air Filter (10162656) – $42.49
- Cold Air Intake Kit Engineered to Add Horsepower & Torque (22905814) – $199.99
- SwyBarBshKt (10600114) – $57.99
What’s the price range for 2003 Cadillac Escalade EXT Performance and Racing Products?
Performance and Racing Product prices for the 2003 Cadillac Escalade EXT start at $17.99 and go up to $899.99 for the most premium parts.
What’s the average price of a Performance and Racing Product for a 2003 Cadillac Escalade EXT?
The average price for Performance and Racing Products for the 2003 Cadillac Escalade EXT is $282.13. Keep in mind the variety of part types within our Performance and Racing Product category so you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Performance and Racing Products for other Cadillac Escalade EXT model years?
What are the cheapest Performance and Racing Products for my 2003 Cadillac Escalade EXT?
The cheapest 2003 Cadillac Escalade EXT Performance and Racing Products we carry in stock are:
- Premium Oil Filter: Ideal for Synthetic & Conventional Oil, Protects Your Engine (6120006) – $17.99
- SwyBarBshKt (10600169) – $27.99
- SwyBarBshKt (10600173) – $27.99
- Ls1 Late Thermostat (11151861) – $36.99
- Spectre Replacement Air Filter (10162656) – $42.49
What are the top-rated Performance and Racing Products that fit the 2003 Cadillac Escalade EXT?
Out of 253 reviews by customers, our 2003 Cadillac Escalade EXT Performance and Racing Products have an average customer rating of . These are some of the highest-rated Performance and Racing Product types for the 2003 Cadillac Escalade EXT and their top-rated products:
- Performance Oil Filters
- Performance Air Filters
What types of Performance and Racing Products do you sell for my 2003 Cadillac Escalade EXT?
As of 11/2/25, these are some of the most in-demand types of Performance and Racing Products for a 2003 Cadillac Escalade EXT:
Can I get help with 2003 Cadillac Escalade EXT Performance and Racing Product orders?
Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Cadillac Performance and Racing Products and more.
What is your return policy for Cadillac Escalade EXT Performance and Racing Products?
Advance Auto Parts keeps returns simple. For new Cadillac Escalade EXT Performance and Racing Products and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.
