2003 Hummer H2 Performance and Racing Products
Find Your Specific 2003 Hummer H2 Performance and Racing Products
Below you will find various in-demand Hummer Performance and Racing Products, components and accessories for your 2003 H2. Advance Auto Parts has popular H2 parts like Performance Exhaust Products, Performance Engines, Performance Air Intake Kits and more. You’ll also find aftermarket and OEM Performance and Racing Products for other H2 model years including
2004,
2005,
2006,
2007,
2008,
2009 and more. Select a category of 2003 Hummer H2 Performance and Racing Products below and start saving instantly.
Popular 2003 Hummer H2 Performance and Racing Products Categories
Essential Performance and Racing Products for 2003 Hummer H2s
Hypertech – Speedometer Calibrator Color: Recalibrate your speedometer to account for changes to tire size (Part No.3300)
from
$239.99
If you’ve installed tires that are larger or smaller than original equipment tires, or if you have installed a ring and pinion gear set with a different rear gear ratio, the Max Energy Spectrum allows you to re-program for correct speedometer readings, as well as correct part-throttle shifting. The vehicle’s computer calculates your vehicle’s speed based on the diameter of the stock tires. If you’ve installed taller or shorter tires, or changed the rear gear ratio, the vehicle’s computer doesn’t know how fast your vehicle is going. As a result, the automatic transmission may not shift correctly and the speedometer readings will not be accurate (as required by law).
Product Features:
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Product Features:
- Speedometer correction for multiple tire sizes
- Return back to factory settings
- Reads/Displays/Clears Diagnostic Trouble Codes (DTC’s)
- Internet updateable
- Product might not be available in all states due to local laws.
Hypertech – Max Energy Spectrum Power Programmer for California: Adds up to 131HP, Improves Throttle Response (Part No.3050)
from
$399.99
The Max Energy Spectrum Power Programmer delivers more power-per-dollar than any other bolt-on on the market today. Plus, it installs in less than 15 minutes without using tools or getting your hands dirty. Our award-winning Power Tuning adds maximum horsepower, torque, and performance for any kind of driving for vehicles using regular, premium, E85, as well as diesel fuel. The Max Energy Spectrum also has a larger backlit LCD screen for quick and easy setup and user-friendly navigation for simple installation, tuning, and feature options.
Product Features:
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Product Features:
- Optimized engine tuning
- Adjustable rev limiter/speed limiter
- Speedometer correction for multiple tire sizes and gear ration changes
- Adjustable shift firmness and shift points
- Throttle adjustments
- Cooling fan on/off temperatures
- Return back to factory settings
- Reads/Displays/Clears Diagnostic Trouble Codes (DTC’s)
- Internet updateable
Auto Ventshade (AVS) – Carflector½, Hood Protector, Smoke, Low Profile, 1 Piece (Part No.20314)
from
$69.99
The AVS Carflector hood shield is designed specifically for cars, CUVs, and SUVs with its medium profile wrap design to provide protection from road debris. Comes with a limited lifetime warranty the AVS Carflector is car wash safe and easy to install.
Product Features:
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Product Features:
- Provides Deflection To Protect Hood; Fenders; And Windshield
- Medium Profile; Wrap-Around Design For Cars And CUVs
- Off-The-Hood Design Allows For Easy Cleaning And Waxing
- Durable; Impact-Resistant Acrylic Construction
- Available In Dark Smoke Finish
- Easy; No-Drill Installation
aFe POWER – Magnum FORCE Cold Air Intake: Open Housing With Oiled Air Filter For Maximum Airflow (Part No.54-10402-1)
from
$451.99
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:
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Product Features:
- 3 Layers Progressively Finer Mesh Synthetic Media
- 100% Polyurethane Top And Base
- Oil Free Pro DRY S Performance Filter
- Provides Maximum Convenience
Energy Suspension – BodyMntBshKt (Part No.3.4156G)
from
$369.99
BodyMntBshKt
Energy Suspension – Transmission Mount (Part No.3.1129G)
from
$97.99
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.
Product Features:
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Product Features:
- Unique Safety Interlock Design
- Impervious to Vehicle Oils and Chemicals
- Strong Enough Too Handle High Performance
B & M – Automatic Shifter – Megashifter – Universal (Part No.80690)
from
$539.99
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
$539.99
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
Energy Suspension – CntrlArmBshngKt (Part No.3.3194G)
from
$191.99
CntrlArmBshngKt
Energy Suspension – CntrlArmBshngKt (Part No.3.3194R)
from
$191.99
CntrlArmBshngKt
Mr. Gasket – Ls1 Late Thermostat (Part No.6367)
from
$37.99
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
MagnaFlow – Street Series Cat-Back Performance Exhaust System (Part No.15770)
from
$999.99
The MagnaFlow 2003-2006 Hummer H2 Street Series Cat-Back Performance Exhaust System brings out the personality of your 6.0L 2003-2006 Hummer H2 with our signature resonant, powerful engine tone and dyno-proven performance. Thanks to its fast-flowing, mandrel bent 2.5in. main piping and 1 Straight-Through mufflers ending in a Dual Straight Passenger Side Rear exit with 4in. Polished Welded-On Double Wall Angle Cut Rolled Edge tips, this Hummer H2 exhaust kit has the performance chops to match its sporty sound and appearance. Upgrade your ride to the next level with an exhaust that has the pipes to put other Hummer H2’s to shame. With this system your vehicle will be producing Moderate exterior and Mild interior sound levels while leaving other cars and trucks feeling envious at every stoplight. Exhaust kit 15770 features a cat-back layout that replaces your ride’s stock exhaust components from near the catalytic converter on back. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 15770 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow’s limited finish warranty and limited construction warranty.
Product Features:
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Product Features:
- Durable corrosion-resistant stainless steel construction
- CNC precision robotic manufacturing techniques
- Dyno-proven performance
Motive Gear – Performance Differential Ring and Pinion (Part No.G895410IFS)
Motive Gear – Performance Differential Ring and Pinion (Part No.G895456IFS)
K&N – Cold Air Intake: Adds Up To 10 Horsepower, With Washable Air Filter (Part No.77-3037KP)
from
$419.99
Gain a guaranteed increase in horsepower and torque with K&N cold air intake system featuring mandrel-bent aluminum intake tube. Each system is paired with a washable, reusable High-Flow Air Filter featuring oiled cotton filter media. Some intakes are not legal for sale or use on any pollution-controlled motor vehicle in California. See the product specifications for CARB status on each part for a specific vehicle.
Product Features:
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Product Features:
- Guaranteed to increase horsepower and torque.
- Mandrel-bent aluminum intake tube paired with oversized oiled cotton air filter.
- Engineered to provide high airflow and exceptional filtration.
- Replaces factory air filter and intake tube.
- Filter only requires cleaning every 100,000 miles under normal highway driving conditions.
- Typical installation can be completed in 60 minutes or less with simple hand tools.
- No-Hassle Lifetime Limited Warranty.
- Will not void vehicle warranty(limited)
Flowmaster Inc. – 50 Series Muffler, 2.75in Dual Offset Inlet 2.5in Dual Offset Outlet, Non-Reversible, Mild Sound (Part No.527504)
from
$306.99
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 – Ultra Flo Exhaust Muffler: Universal Fit, Stainless Steel, 25" L, 4" In, 4" Out, Oval (Part No.17557)
from
$195.99
DynoMax Ultra Flo Welded performance stainless steel mufflers feature 100-percent welded construction for lifelong durability. The unrestricted, straight-through design dyno proven to flow up to 2,000 SCFM and support up to 2,000 horsepower. Each muffler uses our exclusive Continuous Roving Fiberglass (CRF) Technology to absorb unwanted interior resonance while maintaining a deep performance tone. The ‘Pure Unadulterated POWER’ of DynoMax Ultra Flo Welded mufflers are backed by a Limited Warranty and limited Performance & Sound Guarantee.
Product Features:
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Product Features:
- Stainless steel construction for lifelong protection
- 100% welded design for maximum durability
- Straight through design ensures unrestricted exhaust flow and reduces back pressure
- CRF Technology absorbs unwanted interior resonance while maintaining a deep performance tone
- Dyno proven to flow up to 2,000 SCFM and support up to 2,000 horsepower.
Upgrade your 2003 Hummer H2 with Top-Quality Performance and Racing Products
When it comes to maintaining or upgrading your 2003 Hummer H2, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Hummer or enhancing its overall performance, Performance and Racing Products are key to keeping your H2 functioning at its best. At Advance Auto Parts, we offer a wide selection of 15 Performance and Racing Products for the 2003 Hummer H2, designed to meet your needs without breaking the bank.
From
Performance Exhaust Product
replacements to
Performance Engines
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 Hummer H2 at great prices.
Our Performance and Racing Products inventory for this model
ranges from just $37.99 to $999.99, with
an average price of $364.26.
Our 15 Performance and Racing Products in stock come from 10 trusted brands, so you’re sure to find the right part for your 2003 Hummer H2 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 Hummer H2, we stock popular OEM and aftermarket Performance and Racing Products from top names
like B & M, and more.
B & M Performance and Racing Products
start at just $539.99 and boast an impressive 4.1 stars average rating from customers.
With 1 customer reviews and counting, our 2003 Hummer H2 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 Hummer H2 is always ready to roll. We’re committed to providing you with everything you need to keep your H2 in top shape, all in one place.
Start shopping confidently below for your 2003 Hummer H2!
Best-Selling Performance Exhaust Products for 2003 Hummer H2s
Enhance the driving experience in your Hummer with 2 quality Performance Exhaust Product components, starting at $306.99.
MagnaFlow – Street Series Cat-Back Performance Exhaust System (Part No.15770)
from
$999.99
The MagnaFlow 2003-2006 Hummer H2 Street Series Cat-Back Performance Exhaust System brings out the personality of your 6.0L 2003-2006 Hummer H2 with our signature resonant, powerful engine tone and dyno-proven performance. Thanks to its fast-flowing, mandrel bent 2.5in. main piping and 1 Straight-Through mufflers ending in a Dual Straight Passenger Side Rear exit with 4in. Polished Welded-On Double Wall Angle Cut Rolled Edge tips, this Hummer H2 exhaust kit has the performance chops to match its sporty sound and appearance. Upgrade your ride to the next level with an exhaust that has the pipes to put other Hummer H2’s to shame. With this system your vehicle will be producing Moderate exterior and Mild interior sound levels while leaving other cars and trucks feeling envious at every stoplight. Exhaust kit 15770 features a cat-back layout that replaces your ride’s stock exhaust components from near the catalytic converter on back. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 15770 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow’s limited finish warranty and limited construction warranty.
Product Features:
See More
Product Features:
- Durable corrosion-resistant stainless steel construction
- CNC precision robotic manufacturing techniques
- Dyno-proven performance
Flowmaster Inc. – 50 Series Muffler, 2.75in Dual Offset Inlet 2.5in Dual Offset Outlet, Non-Reversible, Mild Sound (Part No.527504)
from
$306.99
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.
See More
Most Popular 2003 Hummer H2 Performance Engines
Customize your Hummer with 1 Performance Engines products
like Performance Engine Coolant Thermostats, all
priced under $37.99.
Mr. Gasket – Ls1 Late Thermostat (Part No.6367)
from
$37.99
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:
See More
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
Top Picks for 2003 Hummer H2 Performance Air Intake Kits
Upgrade Hummer H2s with top-quality Performance Air Intake Kits parts, including 2 OEM and aftermarket selections for your 2003 model.
aFe POWER – Magnum FORCE Cold Air Intake: Open Housing With Oiled Air Filter For Maximum Airflow (Part No.54-10402-1)
from
$451.99
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:
See More
Product Features:
- 3 Layers Progressively Finer Mesh Synthetic Media
- 100% Polyurethane Top And Base
- Oil Free Pro DRY S Performance Filter
- Provides Maximum Convenience
K&N – Cold Air Intake: Adds Up To 10 Horsepower, With Washable Air Filter (Part No.77-3037KP)
from
$419.99
Gain a guaranteed increase in horsepower and torque with K&N cold air intake system featuring mandrel-bent aluminum intake tube. Each system is paired with a washable, reusable High-Flow Air Filter featuring oiled cotton filter media. Some intakes are not legal for sale or use on any pollution-controlled motor vehicle in California. See the product specifications for CARB status on each part for a specific vehicle.
Product Features:
See More
Product Features:
- Guaranteed to increase horsepower and torque.
- Mandrel-bent aluminum intake tube paired with oversized oiled cotton air filter.
- Engineered to provide high airflow and exceptional filtration.
- Replaces factory air filter and intake tube.
- Filter only requires cleaning every 100,000 miles under normal highway driving conditions.
- Typical installation can be completed in 60 minutes or less with simple hand tools.
- No-Hassle Lifetime Limited Warranty.
- Will not void vehicle warranty(limited)
In-Demand Performance Steering Products for 2003 Hummer H2s
Select from 1 premium Performance Steering Products parts for your 2003 Hummer H2.
Energy Suspension – BodyMntBshKt (Part No.3.4156G)
from
$369.99
BodyMntBshKt
Most Sold 2003 Hummer H2 Performance Ignition Products
Explore our best-selling Hummer parts for the 2003 H2 among 1 OEM and aftermarket options starting from $69.99.
Auto Ventshade (AVS) – Carflector½, Hood Protector, Smoke, Low Profile, 1 Piece (Part No.20314)
from
$69.99
The AVS Carflector hood shield is designed specifically for cars, CUVs, and SUVs with its medium profile wrap design to provide protection from road debris. Comes with a limited lifetime warranty the AVS Carflector is car wash safe and easy to install.
Product Features:
See More
Product Features:
- Provides Deflection To Protect Hood; Fenders; And Windshield
- Medium Profile; Wrap-Around Design For Cars And CUVs
- Off-The-Hood Design Allows For Easy Cleaning And Waxing
- Durable; Impact-Resistant Acrylic Construction
- Available In Dark Smoke Finish
- Easy; No-Drill Installation
Top-Rated Performance and Racing Products Brands For Your 2003 Hummer H2
Shop for the best-rated brands offering Performance and Racing Products and other products for your 2003 Hummer H2s. Below you’ll find some of our best rated Performance and Racing Products from B & M, and more. Performance and Racing Products from these brands that fit a 2003 H2 start at just $539.99 and are rated as high as 4.1 stars. OEM and aftermarket Performance and Racing Products don’t get more top quality, durable, and affordable than from the brands below.
Popular B & M 2003 Hummer H2 Performance and Racing Products
When it comes to maintaining or upgrading your 2003 Hummer H2, using quality Performance and Racing Products is essential to ensure durability and a perfect fit. B & M ticks all of those boxes. We offer a wide selection of B & M Performance and Racing Products, specifically designed for the 2003 Hummer H2. With over 1 B & M 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 $539.99. Plus, with over 1 customer reviews and an average rating of 4.1 stars, you can trust that our B & M 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.
from
$539.99
(1)
Automatic Shifter – Megashifter – Universal
“its was pretty easy to install if u have any type of knowlegde of cars it should not be difficult at all and the shifting is awesome just be careful w”
FAQs for 2003 Hummer H2 Performance and Racing Products
Which Performance and Racing Products are best-sellers for 2003 Hummer H2s?
Out of 15 Performance and Racing Products that fit 2003 Hummer H2s, the following parts are the top sellers:
- BodyMntBshKt (10600301) – $369.99
- Ls1 Late Thermostat (11151861) – $37.99
- Carflector½, Hood Protector, Smoke, Low Profile, 1 Piece (12054647) – $69.99
What’s the price range for 2003 Hummer H2 Performance and Racing Products?
Performance and Racing Product prices for the 2003 Hummer H2 start at $37.99 and go up to $999.99 for the most premium parts.
What’s the average price of a Performance and Racing Product for a 2003 Hummer H2?
The average price for Performance and Racing Products for the 2003 Hummer H2 is $364.26. 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 Hummer H2 model years?
What are the cheapest Performance and Racing Products for my 2003 Hummer H2?
The cheapest 2003 Hummer H2 Performance and Racing Products we carry in stock are:
- Ls1 Late Thermostat (11151861) – $37.99
- Carflector½, Hood Protector, Smoke, Low Profile, 1 Piece (12054647) – $69.99
- Transmission Mount (22907166) – $97.99
- CntrlArmBshngKt (10600302) – $191.99
- CntrlArmBshngKt (10600303) – $191.99
What are the top-rated Performance and Racing Products that fit the 2003 Hummer H2?
Out of 1 reviews by customers, our 2003 Hummer H2 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 Hummer H2 and their top-rated products:
- Performance Shifters
- Automatic Shifter – Megashifter – Universal (6900895) – $539.99
What types of Performance and Racing Products do you sell for my 2003 Hummer H2?
As of 3/1/26, these are some of the most in-demand types of Performance and Racing Products for a 2003 Hummer H2:
Can I get help with 2003 Hummer H2 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 Hummer Performance and Racing Products and more.
What is your return policy for Hummer H2 Performance and Racing Products?
Advance Auto Parts keeps returns simple. For new Hummer H2 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.
