2003 Toyota 4Runner Performance and Racing Products

Essential Performance and Racing Products for 2003 Toyota 4Runners

Flowmaster Inc. – 70 Series Muffler, 2.5in Center Inlet 2.5in Offset Outlet, 22in long, Non-Reversible, Mild Sound (Part No.52572)

70 Series Muffler, 2.5in Center Inlet 2.5in Offset Outlet, 22in long, Non-Reversible, Mild Sound

from

$221.99
The 70 series utilizes Flowmaster’s patented Delta Flow technology and an enlarged case for improved sound control along with mileage and power gains. Perfect for use on trucks, SUV’s, RVs, tow vehicles and high performance street cars where space allows. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
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Flowmaster Inc. – 50 Series Muffler, 2.5in Center Inlet 2.5in Offset Outlet, Non-Reversible, Moderate Sound (Part No.52557)

50 Series Muffler, 2.5in Center Inlet 2.5in Offset Outlet, Non-Reversible, Moderate Sound

from

$185.99
The Super 50 series muffler is a larger version of Flowmaster’s 50 series Delta Flow muffler. Originally designed for trucks and SUV’s, it is also well suited to muscle car and high performance applications. In addition, the larger case size significantly reduces interior resonance and provides a deep, rich tone along with mileage and power gains. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
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K&N – Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration (Part No.33-2281)

Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration

from

$64.99
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:
  • 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
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K&N – Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration (Part No.33-2144)

Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration

from

$64.99
K&N performance High-Flow Air Filters are engineered to improve engine performance. Unlike disposable paper filters which must be frequently replaced, K&N Air Filters are washable, reusable, and engineered to last for the life of your vehicle. K&N air filters are backed by our famous 10-Year/Million Mile Limited Warranty, and they provide an environmentally friendly way to reduce landfill waste by avoiding disposable filters. Engineered to fit easily into your factory air box, installation can be completed in a matter of minutes! K&N develops and tests each product on the world┐s toughest race tracks, so we can bring the highest level of performance to your daily driving. Join the millions of customers who have saved money and improved vehicle performance by upgrading to K&N filtration.

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 (based on the average miles driven per year of 15,000 miles)
  • ULTIMATE LONGEVITY: No-hassle lifetime warranty on stock replacement K&N air filters- limitations apply
  • EASY INSTALLATION: K&N Air Filters are pre-treated 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
  • ECO-FRIENDLY: Using a washable, reusable engine air filter helps reduce replacement air filter waste- a K&N air filter is designed to last longer than 10 or more disposable filters
  • MADE IN USA: K&N Air Filters are proudly made in the USA for trusted quality & reliability
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K&N – Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration (Part No.33-2054)

Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration

from

$89.99
K&N performance High-Flow Air Filters are engineered to improve engine performance. Unlike disposable paper filters which must be frequently replaced, K&N Air Filters are washable, reusable, and engineered to last for the life of your vehicle. K&N air filters are backed by our famous 10-Year/Million Mile Limited Warranty, and they provide an environmentally friendly way to reduce landfill waste by avoiding disposable filters. Engineered to fit easily into your factory air box, installation can be completed in a matter of minutes! K&N develops and tests each product on the world┐s toughest race tracks, so we can bring the highest level of performance to your daily driving. Join the millions of customers who have saved money and improved vehicle performance by upgrading to K&N filtration.

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 (based on the average miles driven per year of 15,000 miles)
  • ULTIMATE LONGEVITY: No-hassle lifetime warranty on stock replacement K&N air filters- limitations apply
  • EASY INSTALLATION: K&N Air Filters are pre-treated 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
  • ECO-FRIENDLY: Using a washable, reusable engine air filter helps reduce replacement air filter waste- a K&N air filter is designed to last longer than 10 or more disposable filters
  • MADE IN USA: K&N Air Filters are proudly made in the USA for trusted quality & reliability
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aFe POWER – Magnum FORCE Cold Air Intake: Gain up to 20 Horsepower! Dry Air Filter For Easy Maintenance (Part No.51-82502)

Magnum FORCE Cold Air Intake: Gain up to 20 Horsepower! Dry Air Filter For Easy Maintenance

from

$391.99
Advanced Flow Engineering, Inc. (aFe) produces high flow, high performance air filters & intake systems for the automotive industry. Founded in April, 1999, aFe was created to address an obvious need in the automotive aftermarket industry: a lack of choice for a high performance aftermarket air filter. We are a team of engineers, machinists, production and sales people who believe in the product we design. We each have years of experience in our respective positions and together work to ensure that we have the best product on the market. Our purpose was not just to be another vendor that offers air filters, we chose to pay attention to those finer details that set an aFe filter apart from the competition. We currently offer aftermarket air filters for passenger cars, light trucks and SUVs. We also have many applications for round racing and universal clamp-on filters. To find your particular application, please use our new search engines. If you do not see your particular application listed, please contact us.

Product Features:
  • 3 Layers Progressively Finer Mesh Synthetic Media
  • 100% Polyurethane Top And Base
  • Oil Free Pro DRY S Performance Filter
  • Provides Maximum Convenience
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K&N – Cold Air Intake: Adds Up To 9 Horsepower, With Million Mile Air Filter (Part No.63-9023)

Cold Air Intake: Adds Up To 9 Horsepower, With Million Mile Air Filter

from

$349.99
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:
  • 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.
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K&N – Cold Air Intake: Adds Up To 6 Horsepower, With Million Mile Air Filter (Part No.57-9012)

Cold Air Intake: Adds Up To 6 Horsepower, With Million Mile Air Filter

from

$349.99
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:
  • 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.
See More

K&N – Cold Air Intake: Adds Up To 14 Horsepower, With Million Mile Air Filter (Part No.63-9022)

Cold Air Intake: Adds Up To 14 Horsepower, With Million Mile Air Filter

from

$349.99
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:
  • 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.
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Hypertech – React Throttle Optimizer Towing Version – Toyota (Part No.102501)

React Throttle Optimizer Towing Version - Toyota

from

$328.99
The REACT offers fully customizable control over your vehicle’s throttle response. The simple control knob allows you to switch between multiple modes and control the throttle intensity of each mode on-the-fly. The REACT installs easily and is completely plug-and-play, has an automatic setup sequence so no disassembly is required, comes with a magnetic A/C vent mount (Pedestal swivel mount also available – Sold separately at hypertech.com/REACT.aspx), and doesn’t void your factory warranty. Plus the REACT is internet updateable. Three (3) versions of the REACT throttle optimizer are available to fit your particular driving needs… Performance, Off-Road, and Tow.

Product Features:
  • On-The-Fly Adjustments
  • LED Setting Indicators
  • Multiple Levels Of Safety Protection
  • Magnetic A/C Vent Mount Incl. [No Screw Or Tape]
  • Pedestal Swivel Mount Available [Sold Separately]
  • Custom Tuning Software
  • Internet Updateable
  • Easy Plug-N-Play Install
  • Automatic Setup Sequence [No Disassembly Required]
  • Doesnt Void Factory Warranty
  • Product might not be available in all states due to local laws.
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Bully Dog – Vehicle Performance Enhancer: Engine Tuner, Monitor, Gauge, & Diagnostic Device (Part No.40417)

Vehicle Performance Enhancer: Engine Tuner, Monitor, Gauge, & Diagnostic Device

from

$469.99
This Bully Dog GT Platinum tuner is four products in one: a vehicle engine tuner, monitor, gauge, and diagnostic device.ÿ

Product Features:
  • Dramatically improves the utility of your vehicle by increasing horsepower, improving fuel economy, and providing a comprehensive set of monitoring features and diagnostic functions.
  • Bully Dog GT Platinum tuners are incomparable to other tuning products because they have the largest feature set and the widest range of vehicle applications available.
  • Product might not be available in all states due to local laws.
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Suncore – ShkAbsrbrAssyKt (Part No.63T-12-R)

ShkAbsrbrAssyKt

from

$114.99
ShkAbsrbrAssyKt

Energy Suspension – Sway Bar Bushing Set (Part No.8.5102G)

Sway Bar Bushing Set

from

$22.99
Energy Suspension performance polyurethane sway bar bushings and end links offer the greatest improvement in performance among all the products Energy offers. They make a vehicle’s sway bar system much more effective like adding a larger, higher performance sway bar! Economy, increased efficiency, and easy installation are just some of the reasons these products are so popular. Made of Hyper-Flex polyurethane that lasts much longer than O.E.M. rubber bushings.

Product Features:
  • Allows Sway Bar System to Work At 100% Efficiency
  • Zerk Type Fittings
  • Allows for Periodic Greasing
  • Lasts Much Longer Than OEM Rubber Bushings
  • Handling Characteristics Improve Dramatically
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Energy Suspension – SwyBarBshKt (Part No.8.5135R)

SwyBarBshKt

from

$20.99
SwyBarBshKt

Energy Suspension – Sway Bar Bushing Set (Part No.8.5101R)

Sway Bar Bushing Set

from

$22.99
Energy Suspension performance polyurethane sway bar bushings and end links offer the greatest improvement in performance among all the products Energy offers. They make a vehicle’s sway bar system much more effective like adding a larger, higher performance sway bar! Economy, increased efficiency, and easy installation are just some of the reasons these products are so popular. Made of Hyper-Flex polyurethane that lasts much longer than O.E.M. rubber bushings.

Product Features:
  • Allows Sway Bar System to Work At 100% Efficiency
  • Zerk Type Fittings
  • Allows for Periodic Greasing
  • Lasts Much Longer Than OEM Rubber Bushings
  • Handling Characteristics Improve Dramatically
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Energy Suspension – CntrlArmBshngKt (Part No.8.3129G)

CntrlArmBshngKt

from

$130.99
CntrlArmBshngKt

Energy Suspension – Control Arm Bushing Set (Part No.8.3104G)

Control Arm Bushing Set

from

$48.99
For both front and rear of suspensions on cars, trucks and SUVs. Maintains proper alignment under extreme conditions on and off-road and during competition. Improves vehicle handling, cornering and overall control. Full floating for smoother operation. Made of Energy’s Hyper-Flex performance polyurethane to add performance and durability.

Product Features:
  • Maintains Better Alignment While Driving
  • Full Floating and Non Binding
  • Fits Into the Remaining Stock Control Arms
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Energy Suspension – Control Arm Bushing Set (Part No.8.3107G)

Control Arm Bushing Set

from

$136.99
For both front and rear of suspensions on cars, trucks and SUVs. Maintains proper alignment under extreme conditions on and off-road and during competition. Improves vehicle handling, cornering and overall control. Full floating for smoother operation. Made of Energy’s Hyper-Flex performance polyurethane to add performance and durability.

Product Features:
  • Maintains Better Alignment While Driving
  • Full Floating and Non Binding
  • Fits Into the Remaining Stock Control Arms
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Energy Suspension – Control Arm Bushing Set (Part No.8.3108G)

Control Arm Bushing Set

from

$71.99
For both front and rear of suspensions on cars, trucks and SUVs. Maintains proper alignment under extreme conditions on and off-road and during competition. Improves vehicle handling, cornering and overall control. Full floating for smoother operation. Made of Energy’s Hyper-Flex performance polyurethane to add performance and durability.

Product Features:
  • Maintains Better Alignment While Driving
  • Full Floating and Non Binding
  • Fits Into the Remaining Stock Control Arms
See More

Upgrade your 2003 Toyota 4Runner with Top-Quality Performance and Racing Products

When it comes to maintaining or upgrading your 2003 Toyota 4Runner, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Toyota or enhancing its overall performance, Performance and Racing Products are key to keeping your 4Runner functioning at its best. At Advance Auto Parts, we offer a wide selection of 9 Performance and Racing Products for the 2003 Toyota 4Runner, designed to meet your needs without breaking the bank. From Performance Air Intake Kit replacements to Performance Exhaust 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 Toyota 4Runner at great prices. Our Performance and Racing Products inventory for this model ranges from just $20.99 to $349.99, with an average price of $154.36. Our 9 Performance and Racing Products in stock come from 5 trusted brands, so you’re sure to find the right part for your 2003 Toyota 4Runner 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 Toyota 4Runner, we stock popular OEM and aftermarket Performance and Racing Products from top names like K&N Flowmaster Inc., and more. K&N Performance and Racing Products start at just $64.99 and boast an impressive 5 stars average rating from customers. With 255 customer reviews and counting, our 2003 Toyota 4Runner 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 Toyota 4Runner is always ready to roll. We’re committed to providing you with everything you need to keep your 4Runner in top shape, all in one place. Start shopping confidently below for your 2003 Toyota 4Runner!

Best-Selling Performance Air Intake Kits for 2003 Toyota 4Runners

Enhance the driving experience in your Toyota with 2 quality Performance Air Intake Kit components, starting at $349.99.

K&N – Cold Air Intake: Adds Up To 14 Horsepower, With Million Mile Air Filter (Part No.63-9022)

Cold Air Intake: Adds Up To 14 Horsepower, With Million Mile Air Filter

from

$349.99
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:
  • 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.
See More

K&N – Cold Air Intake: Adds Up To 9 Horsepower, With Million Mile Air Filter (Part No.63-9023)

Cold Air Intake: Adds Up To 9 Horsepower, With Million Mile Air Filter

from

$349.99
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:
  • 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.
See More

Most Popular 2003 Toyota 4Runner Performance Exhaust Products

Customize your Toyota with 1 Performance Exhaust Products products like Performance Exhaust Mufflers, all priced under $185.99.

Flowmaster Inc. – 50 Series Muffler, 2.5in Center Inlet 2.5in Offset Outlet, Non-Reversible, Moderate Sound (Part No.52557)

50 Series Muffler, 2.5in Center Inlet 2.5in Offset Outlet, Non-Reversible, Moderate Sound

from

$185.99
The Super 50 series muffler is a larger version of Flowmaster’s 50 series Delta Flow muffler. Originally designed for trucks and SUV’s, it is also well suited to muscle car and high performance applications. In addition, the larger case size significantly reduces interior resonance and provides a deep, rich tone along with mileage and power gains. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
See More

Top Picks for 2003 Toyota 4Runner Performance Suspension Products

Upgrade Toyota 4Runners with top-quality Performance Suspension Products parts, including 2 OEM and aftermarket selections for your 2003 model.

Energy Suspension – CntrlArmBshngKt (Part No.8.3129G)

CntrlArmBshngKt

from

$130.99
CntrlArmBshngKt

Suncore – ShkAbsrbrAssyKt (Part No.63T-12-R)

ShkAbsrbrAssyKt

from

$114.99
ShkAbsrbrAssyKt

In-Demand Performance Air Filters for 2003 Toyota 4Runners

Select from 2 premium Performance Air Filters parts for your 2003 Toyota 4Runner, with prices ranging from $64.99 to $64.99.

K&N – Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration (Part No.33-2281)

Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration

from

$64.99
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:
  • 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
See More

K&N – Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration (Part No.33-2144)

Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration

from

$64.99
K&N performance High-Flow Air Filters are engineered to improve engine performance. Unlike disposable paper filters which must be frequently replaced, K&N Air Filters are washable, reusable, and engineered to last for the life of your vehicle. K&N air filters are backed by our famous 10-Year/Million Mile Limited Warranty, and they provide an environmentally friendly way to reduce landfill waste by avoiding disposable filters. Engineered to fit easily into your factory air box, installation can be completed in a matter of minutes! K&N develops and tests each product on the world┐s toughest race tracks, so we can bring the highest level of performance to your daily driving. Join the millions of customers who have saved money and improved vehicle performance by upgrading to K&N filtration.

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 (based on the average miles driven per year of 15,000 miles)
  • ULTIMATE LONGEVITY: No-hassle lifetime warranty on stock replacement K&N air filters- limitations apply
  • EASY INSTALLATION: K&N Air Filters are pre-treated 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
  • ECO-FRIENDLY: Using a washable, reusable engine air filter helps reduce replacement air filter waste- a K&N air filter is designed to last longer than 10 or more disposable filters
  • MADE IN USA: K&N Air Filters are proudly made in the USA for trusted quality & reliability
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Most Sold 2003 Toyota 4Runner Performance Steering Products

Explore our best-selling Toyota parts for the 2003 4Runner among 1 OEM and aftermarket options starting from $20.99.

Energy Suspension – SwyBarBshKt (Part No.8.5135R)

SwyBarBshKt

from

$20.99
SwyBarBshKt

Top-Rated Performance and Racing Products Brands For Your 2003 Toyota 4Runner

Shop for the best-rated brands offering Performance and Racing Products and other products for your 2003 Toyota 4Runners. Below you’ll find some of our best rated Performance and Racing Products from K&N and Flowmaster Inc., and more. Performance and Racing Products from these brands that fit a 2003 4Runner start at just $64.99 and are rated as high as 5 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 Toyota 4Runner Performance and Racing Products

When it comes to maintaining or upgrading your 2003 Toyota 4Runner, 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 Toyota 4Runner. With over 4 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 $64.99, with an average price of just $207.49. Plus, with over 83 customer reviews and an average rating of 5 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.

Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration
from
$64.99

(53)

Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration

“Love it!! Best for my Tacoma…”

Cold Air Intake: Adds Up To 14 Horsepower, With Million Mile Air Filter
from
$349.99

(5)

Cold Air Intake: Adds Up To 14 Horsepower, With Million Mile Air Filter

“Very easy to install increased horse power and proformance. Even added a nice rumble.”

Popular Flowmaster Inc. 2003 Toyota 4Runner Performance and Racing Products

Flowmaster Inc. auto parts is one of the highest quality Performance and Racing Product brands in the market. Any 2003 Toyota 4Runner owner should feel confident when installing genuine Flowmaster Inc. parts in their vehicle. To ensure the best fit and performance for your 2003 4Runner, Advance Auto Parts carries a full inventory of 1 Flowmaster Inc. Performance and Racing Products. Plus you will be keeping your Toyota in peak condition while saving money because prices on these Flowmaster Inc. Performance and Racing Products range up to $185.99, plus, with more than 1 customer reviews and an impressive 4 stars average rating, you can be confident the Fram Performance and Racing Products below will deliver on both quality and value.

50 Series Muffler, 2.5in Center Inlet 2.5in Offset Outlet, Non-Reversible, Moderate Sound
from
$185.99

(1)

50 Series Muffler, 2.5in Center Inlet 2.5in Offset Outlet, Non-Reversible, Moderate Sound

“Was looking for a muffler to replace my stock on 2001 Dakota with a 4.7L V8. Come accross the 50 series from flowmaster did lots of research on this ”

FAQs for 2003 Toyota 4Runner Performance and Racing Products

Which Performance and Racing Products are best-sellers for 2003 Toyota 4Runners?

Out of 9 Performance and Racing Products that fit 2003 Toyota 4Runners, the following parts are the top sellers:

What’s the price range for 2003 Toyota 4Runner Performance and Racing Products?

Performance and Racing Product prices for the 2003 Toyota 4Runner start at $20.99 and go up to $349.99 for the most premium parts.

What’s the average price of a Performance and Racing Product for a 2003 Toyota 4Runner?

The average price for Performance and Racing Products for the 2003 Toyota 4Runner is $154.36. 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 Toyota 4Runner model years?

Yes, we currently carry Performance and Racing Products for 40 model years of Toyota 4Runners between 1984 and 2024. Performance and Racing Products are bought most frequently for the following model years: 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, and 2015.

What are the cheapest Performance and Racing Products for my 2003 Toyota 4Runner?

The cheapest 2003 Toyota 4Runner Performance and Racing Products we carry in stock are:

What are the top-rated Performance and Racing Products that fit the 2003 Toyota 4Runner?

Out of 255 reviews by customers, our 2003 Toyota 4Runner 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 Toyota 4Runner and their top-rated products:

What types of Performance and Racing Products do you sell for my 2003 Toyota 4Runner?

As of 2/5/25, these are some of the most in-demand types of Performance and Racing Products for a 2003 Toyota 4Runner:

Can I get help with 2003 Toyota 4Runner 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 Toyota Performance and Racing Products and more.

What is your return policy for Toyota 4Runner Performance and Racing Products?

Advance Auto Parts keeps returns simple. For new Toyota 4Runner 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.