2003 Hummer H2 Performance and Racing Products

Essential 2003 Hummer H2 Performance and Racing Products

Energy Suspension – Transmission Mount (Part No.3.1129R)

Transmission Mount

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$83.99
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:
  • Unique Safety Interlock Design
  • Impervious to Vehicle Oils and Chemicals
  • Strong Enough Too Handle High Performance
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Flowmaster Inc. – 50 Series Muffler, 2.75in Dual Offset Inlet 2.5in Dual Offset Outlet, Non-Reversible, Mild Sound (Part No.527504)

50 Series Muffler, 2.75in Dual Offset Inlet 2.5in Dual Offset Outlet, Non-Reversible, Mild Sound

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$278.99
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 Muffler: Universal Fit, Stainless Steel, 20" L, 3" In, 3" Out, Oval (Part No.17233)

Ultra Flo Muffler: Universal Fit, Stainless Steel, 20" L, 3" In, 3" Out, Oval

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$139.99
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.

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.
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MagnaFlow – Street Series Cat-Back Performance Exhaust System (Part No.15770)

Street Series Cat-Back Performance Exhaust System

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$938.99
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 1-year limited finish warranty and limited lifetime construction warranty.

Product Features:
  • Dyno-proven performance
  • Durable corrosion-resistant stainless steel construction
  • CNC precision robotic manufacturing techniques
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Energy Suspension – BodyMntBshKt (Part No.3.4156R)

BodyMntBshKt

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$346.99
BodyMntBshKt

Auto Ventshade (AVS) – Carflector®, Hood Protector, Smoke, Low Profile, 1 Pc (Part No.20314)

Carflector®, Hood Protector, Smoke, Low Profile, 1 Pc

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$69.99
The AVS Carflector® hood shield is custom molded with precision engineering to fit cars, CUVs, and SUVs. The AVS Carflector has a medium profile wrap design to provide excellent protection from road debris for the hood, fenders, and windshield. Off-the-hood design makes it easy for cleaning as well as car-wash safe. Easy to install by attaching with 3M(TM) automotive-grade adhesive or mechanical fasteners. Comes with a limited lifetime warranty. Whatever you drive, AVS has the variety of hoodshield styles to suite your design preferences and vehicle style.

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
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B & M – Automatic Shifter, Quicksilver 4 Speed (Part No.80683)

Automatic Shifter, Quicksilver 4 Speed

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$439.99
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.

Product Features:
  • Universal Floor Mount Application
  • Base Trimmed For Custom Fit
  • Cable Operated
  • Quick Installation
  • Accurate Shifting
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B & M – Automatic Shifter, Megashifter (Part No.80690)

Automatic Shifter, Megashifter

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$479.99
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. First off let’s talk function. The Megashifters positive ratcheting funct

Product Features:
  • Universal Floor Mount
  • Base Can Be Trimmed-Custom Fit
  • Cable Operated
  • Quick Installation
  • Accurate Shifting
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B & M – Automatic Shifter, Light Truck Megashifter (Part No.80680)

Automatic Shifter, Light Truck Megashifter

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$479.99
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:
  • 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
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Energy Suspension – CntrlArmBshngKt (Part No.3.3194R)

CntrlArmBshngKt

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$175.99
CntrlArmBshngKt

K&N – Cold Air Intake: Adds Up To 11 Horsepower, With Million Mile Air Filter (Part No.57-3037)

Cold Air Intake: Adds Up To 11 Horsepower, With Million Mile Air Filter

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$499.99
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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2003 Hummer H2 Performance and Racing Products

You count on your 2003 Hummer H2 to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Performance and Racing Products. With 11 Performance and Racing Products ranging in price from $69.99 to $938.99, you’re sure to find everything you need for your 2003 Hummer H2.

Brands matter. If you want to shop a specific Performance and Racing Products brand, we stock 7 different brands like Dynomax, Energy Suspension, and Auto Ventshade (AVS). 2003 Hummer H2 Performance and Racing Products start as low as $69.99!

One of the best ways to find top quality OEM or aftermarket Performance and Racing Products is by asking professionals. Short of that, you can shop with confidence thanks to our 8 extensive product reviews on 2003 Hummer H2 Performance and Racing Products. Some of the top-rated Performance and Racing Products products we carry are Cold Air Intake: Adds Up To 11 Horsepower, With Million Mile Air Filter with 4.5 stars.

Did we mention you can order your Performance and Racing Products from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Performance and Racing Products inventory for your 2003 Hummer H2 below to get started!

Top-Rated Performance and Racing Products Brands For Your 2003 Hummer H2

Trusted Performance and Racing Products OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 2003 Hummer H2 running right for years to come. In our inventory you’ll find brands like Dynomax, Energy Suspension, Auto Ventshade (AVS), and even more.

Popular B & M Performance and Racing Products

You’ll find popular B & M brand products across Performance Shifters. All are waiting to get your 2003 Hummer H2 back on the road. Some of the top-rated B & M products in these categories are:
Automatic Shifter, Megashifter
from $479.99
(1)
Automatic Shifter, Megashifter
Performance Shifters

FAQs for 2003 Hummer H2 Performance and Racing Products

What are the most purchased Performance and Racing Products for the 2003 Hummer H2?

Out of 11 Performance and Racing Products for the 2003 Hummer H2, the most popular in our inventory are:
BodyMntBshKt
from $346.99
This product is not rated
BodyMntBshKt
Performance Body Mounts
Carflector®, Hood Protector, Smoke, Low Profile, 1 Pc
from $69.99
This product is not rated
Carflector®, Hood Protector, Smoke, Low Profile, 1 Pc
Performance Ignition Modules
Transmission Mount
from $83.99
This product is not rated
Transmission Mount
Performance Engine and Transmission Mounts

What are the top-rated 2003 Hummer H2 Performance and Racing Products?

Top-rated Performance and Racing Products for your 2003 Hummer H2 based on customer reviews/ratings are:
Cold Air Intake: Adds Up To 11 Horsepower, With Million Mile Air Filter
from $499.99
(2)
Cold Air Intake: Adds Up To 11 Horsepower, With Million Mile Air Filter
“I’ve had this intake installed on my 03 hummer for almost a year now and I’ve had no issues. It’s all around a great air filter system. I just added a”