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Performance parts are meant to add horsepower and push your vehicle to its maximum capability. From air intakes and suspension systems to racing seats and performance chips – we have it all and much more to make functional or aesthetic improvement to your Hummer. Some performance parts, like turbochargers, oil coolers, dual exhausts (if not factory-installed), will add functionality which simply didn't exist previously. Other performance upgrades focus largely on aesthetic considerations, so it's up to you to decide what's best for your Hummer.
- StopTech® Sport Drilled and Slotted 1-Piece Brake Rotor$86.22 - $117.75
- Hawk® Performance Ceramic Brake Pads$107.21 - $126.11
- Energy Suspension® Rear Control Arm Bushings$98.12 - $101.90
Guides & Articles
- Performance ChipsSpeedo Calibrators and Tranny Controllers Let You Re-Engineer Your RideMany auto enthusiasts are driving around with speedometers registering too low a speed because they've mounted bigger tires on their vehicle. This effect occurs because larger tires have a greater overall circumference (distance around the outer edge) than smaller ones do. A tire with a larger circumference will cover more ground per revolution, and it will also make fewer revolutions in a mile than a tire of smaller diameter.
- Performance ChipsData Monitors and Loggers Provide Access to Important Drivetrain InfoIf you're tuning a modern engine, there's a lot of information you'll need to know in order to make educated adjustments and avoid trial-and-error guesses. Keeping track of air/fuel ratios, fuel pressures, boost pressures, and rpms is difficult at speed, and trying to commit them all to memory is almost impossible - assuming you even have readouts for these items. Maybe all you need to do is closely watch how temperatures and other things are affected by stop-and-go traffic. Or maybe you take your vehicle on track runs. If so, you already know splitting your attention between gauges and driving just causes you to lose focus on both. Because you can't take notes while driving, we offer a practical and effective solution for the tracking of engine data - recording it electronically for later playback.
- Performance ChipsWhy Should I Add a Throttle Controller?Modern cars and trucks are constantly evolving, mostly due to advancements in electronics. This allows vehicle systems previously controlled by mechanical hardware to be run by computers that have processing power undreamt of several short decades ago. When applied properly, this processing power can wring out higher levels of a vehicle's built-in power and responsiveness, without physically making any engine upgrades. One such system found on today's fuel-injected vehicles is electronic throttle control, commonly known as drive-by-wire.
- Performance ChipsAre Superchips Really Super?In today's ultra-competitive automotive world where fuel consumption, horsepower, and emissions are paramount, modern vehicles are controlled by computers in order to meet these opposite and conflicting demands. And presiding over the multitude of separate computers on any vehicle is the ECU (Engine Control Unit) - sometimes called the ECM (Engine Control Module).
- Performance Exhaust SystemsWhy Do Some Replacement Exhaust Manifolds Come With Catalytic Converters?If you're looking for a replacement exhaust manifold, you may notice that the choices available for your specific vehicle are only available with an "integrated" catalytic converter. In the same way, a search for a replacement catalytic converter may only turn up "combination" converter/manifold products.
- Performance Brakes, Pads & RotorsBig Brake Kits Bring The Biggest Stopping PowerHave you thought about upgrading the brakes on your car or truck to performance brakes? You likely have, as most car enthusiasts consider that sooner or later. This desire may be because of your more aggressive driving style, your dissatisfaction with OE brakes, your vehicle being used to tow a trailer, or even your weekend stints at the track.
- Off-Road BumpersSkid Plates Provide The Ultimate In Off-Road ProtectionIf you take your 4x4 off-roading, you have likely gained an appreciation of how unforgiving trails can be when it comes to your vehicle's underside. Deep ruts with rough edges can appear out of nowhere, sturdy-looking rocks can shift unexpectedly, and tranquil bodies of water can hide everything from sinkholes to fallen tree trunks. Before you know it, the underside of your truck has bounced off something hard enough to damage moving suspension components or puncture housings containing engine oil, gasoline, transmission fluid, or differential gear oil.
- Performance Exhaust SystemsHere's A "Tip": Exhaust Tips Are An Easy Way To Dress Up Your TailpipePerformance exhaust systems give you improvements in power output, sound levels, and appearance, all in one package. But let's face it: not everyone has the spare change to buy and bolt up one of these kits. So you soldier on with what you have. And that may be a tired-looking exhaust system that is still functional. You've spent all day washing and waxing the vehicle's paint and chrome to perfection, but no degree of elbow grease will make that tailpipe look better.
- Performance Engine CoolingHot Under The Hood? Performance Cooling Fans Chase Away Excess HeatAuxiliary fans are great for providing a boost to your vehicle's original cooling system if you've encountered overheating conditions. For those who live in climates that see high temperature and humidity, excessively high coolant temperatures can be a major problem - one that will not go away if ignored. Aluminum engine blocks and cylinder heads found on most of today's cars are much more sensitive to overheating than traditional engine blocks made of iron. All it takes is one stretch of time with parts reaching excessively high temperatures to cause permanent metal warpage, leaks, and damage to a myriad of moving parts.
- Performance Engine CoolingAuxiliary Oil Coolers Keep Engine Oil Temperature Under ControlYou may have seen Performance Engine Oil Coolers for sale on our website or elsewhere, and your first reaction may have been "who needs one of those? Not I." We can't say we blame you if your presumption is that either a) your engine is cooled by liquid antifreeze/coolant, so this thing can't be for you; or b) the word "performance" led you to conclude that hot-rodders are the primary target for these add-ons. In fact, if you tow a trailer, or tend to load up your SUV to the max, or drive at high speeds in very hot summer climes, you just might be the real target customer for an engine oil cooler. Allow us to provide some educational background on motor oil, and the critical roles (plural) it plays. Please read on!
- Caliper CoversCaliper Covers vs. Caliper PaintOne consequence of the trend toward larger diameter wheels is that previously hidden mechanical components are now clearly visible. We are referring, of course, to your brake calipers. These dirty, dusty, and rusty parts used to function in obscurity, but with plus-size thin-spoke wheels, they're now on display for all to see. If you happen to drive a late model performance car with a nice set of multi-piston Brembos, this is not an issue. Nor is it a concern if you have the coin for an upgrade to a performance brake kit. But what about the regular Joe who just blew his wad on wheels and tires; what can he do?
- Performance Air Intake SystemsCan an Air Intake System also Increase My Fuel Economy?We all know that achieving better fuel economy while driving puts money back in your pocket and does the environment a favor. But for those who are actively interested in squeezing the most out of every drop of gas, getting more miles per gallon can actually become a sport - especially if a vehicle has a manual transmission that can be upshifted earlier and put into neutral during downhill grades or when coasting to a stop sign.
- Performance Air Intake SystemsThe Real Cost of Your Car’s Cheap Factory Air FilterIn today's world, saving money wherever possible has become essential. But it's important not to lose sight of the fact that, sometimes, a product that costs more up front will save you more money over time. In our business, we've seen far too many consumers judge products solely on the basis of their initial cost, completely neglecting any long-term economy and benefits. When it comes to automobiles, "performance" air filters are a perfect example of this.
- Performance Brakes, Pads & RotorsWhy is it important to do a brake fluid flush?If you've ever visited an automotive dealership service department, you may have been told that your vehicle needs a brake fluid flush. Or you might have received a coupon mailer offering this service for a discounted price. Maybe you thought it was an attempt on the part of the dealer to separate you from your money for something you don't really need. After all, you have made the effort to learn more about your brakes, and you understand that occasionally, the brake pads and rotors will wear out and need replacing. However, you've never heard of a "brake fluid flush".
- Performance Air Intake SystemsMy Car is Brand New | Why Should I Change My Air Intake System?Aftermarket air intake systems have become one of the most popular engine modifications available for late model cars and trucks. An easy question to ask is why are these so popular? After all, didn't engineers who work for your vehicle manufacturer spend years developing the best engine components available? Since power and fuel economy are major selling points these days, it's hard to imagine car companies not doing everything they can to maximize horsepower, miles per gallon, or both.
- Performance Air Intake SystemsWhat are the Different Types of Air Intake Systems?There are many types of aftermarket air intake systems that range from simple and inexpensive to elaborate. In the scope of this article, we'll examine the different types of air intakes, what they do, and look at a few specific product examples of each. But in short, performance air intake setups increase airflow into your engine - boosting combustion and creating more horsepower and torque that you can actually feel. Their relatively low cost and easy installation (bolt-on in most cases) keeps them in popular demand by car enthusiasts that own everything from 1.5-liter turbo motors to big block V8 engines.
- Replacement Brake PartsHow To Replace Disc Brake PadsDisc brakes have been the most common setup on modern vehicles for decades, with just about 100% of today's vehicles using them in the front, and many cars and trucks also equipping the rear with disc brakes. The brake pads are the wear items which will need attention sooner or later; there will be wide variations in brake pad life depending on the vehicle, driver, driving style, etc., but rough estimates are that front pads will need attention every 15,000-30,000 miles, with rear disc pads lasting 50,000-100,000 miles.
- Performance Brakes, Pads & RotorsWhich Performance Brake Pads Work Best On My Car?The brake pads which were installed on your car or truck when it was new are "fine" - fine for the average Joe who is driving an unmodified vehicle. But YOU, the auto enthusiast, you know better. You have made various drivetrain mods, or have converted your truck into a towing rig. You've added bigger wheels and tires and now want brakes which won't leave such a mess on the shiny rims. You recognize that you need to improve the "stop" to accompany the "go". The first, and easiest, item to move up to is a set of performance brake pads.
- Performance Suspension PartsHow much lift is needed for larger tires on my 2007-up Jeep Wrangler?Twenty years after the first Jeep Wrangler model debuted in 1987, third-generation Wranglers were introduced for the 2007 model year. Unlike any previous Wranglers or CJs, a 4-door Unlimited model (known internally as the "JKU" body) was offered alongside the standard 2-door ("JK" body). Because it took the off-road capability Wranglers are known for and broadened it with the practicality of 4 doors for those needing a family vehicle, third-generation Wranglers have proven very successful in the marketplace. Maintaining Jeep tradition, this Wrangler appeals by offering a higher-than-average number of advantages for the 4x4 enthusiast, whether it's used for rock crawling or as an everyday driver.
- Performance Brakes, Pads & RotorsGlossary of Brake TerminologyWhether you're looking to replace worn brake pads and rotors or delving into more detailed brake repairs or upgrades that involve new calipers, proportioning valves, master cylinders, vacuum boosters, and more, you will come across a lot of different terminology when it comes to brake components. Depending on your knowledge and experience, a lot of these terms may be elementary. However, because many of them use similar words but represent completely different things, we've created this glossary to help you understand exactly what you need, and what you don't.
- Performance Suspension PartsCoilovers Are Pricey - Why Would I Spend My Money For Them?When first glancing through the Performance Coilover Kits section of our website, you may be put off by some of the prices you see. After all, what are you buying other than a combo set of springs and shocks under some fancy name? Certainly, you ask yourself, can't you purchase springs and shocks separately and monetarily come out ahead?
- Performance Suspension PartsBody Lifts & Suspension Lifts From 2 to 10 Inches | What are my Lift Kit Choices?Has this happened to you? You catch a glimpse of a truck like yours in a parking lot or around town that, for some reason, you like better than your own. It seems to have a stance that's more rugged-looking and more suited to a 4x4 than yours does. Maybe you get a chance to stop and take a closer look immediately, or maybe it's days or weeks before you see the other truck again.
- Automotive ToolsWhat Special Tools Are Available For Suspension Repair?Seasoned professional automotive technicians often say if you're using too much physical effort during a repair, you're simply not using the right tool. This is true, and a perfect example is repairing and replacing suspension components. If you've ever done this type of work or attempted to do it, you know it can be trickier than merely loosening and tightening bolts.
- Performance Suspension PartsCoil, Leaf, & Torsion Bar | Describing The 3 Different Kinds of SpringsThe springs in your vehicle probably aren't something you think about until there's a problem or you've decided to upgrade suspension parts in the interest of sportier handling. But what specifically do springs do? In short, they play a major role in the safe handling and ride comfort of your vehicle. Not only do they keep a vehicle at a designated standing height, they provide recoil necessary to bounce back after suspension components move up and down over uneven road surfaces. By themselves, springs will continue to bounce up and down for a long time unless a motion damper such as a shock absorber is present to keep things stable. Springs can be soft and extremely bouncy, or they can be stiffer and less bounce-prone.
- Performance Suspension PartsHow Do Shock Absorbers Work?Shock absorbers (also known as "shocks") are the suspension components which slow, then stop, the up-and-down bouncing movement of your vehicle's springs through a process known as dampening. Without shocks to calm things down, springs will continue to extend and release energy they absorb from bumps in the road at an uncontrolled rate - bouncing for a long time until their kinetic energy finally dissipates. Needless to say, this would produce an extremely bouncy ride that would be hard to control over uneven road surfaces.
- Performance Exhaust SystemsAre Headers Worth The Performance Improvement?Engines have often been compared to air pumps, because the engine that’s most efficient in terms of economy and power is the one that can get air in and out of its cylinders the easiest. That’s why most performance modifications like conical air filters, cold air intake systems, headers, and cat-back exhaust systems are aimed at making the intake and exhaust systems less restrictive. These parts increase the flow of air into the engine and ease the flow of exhaust gas out of the engine. Among these components, headers may be the most difficult to install. In this article, we’ll discuss what headers do, their different types, and how much performance they can add to your car.
- Performance Exhaust SystemsAre X-pipes and H-pipes Better Than Straight Pipes on Dual Exhaust Systems?You may be wondering why so many aftermarket performance exhaust system manufacturers are offering dual exhaust systems connected by "H-pipe" or "X-pipe" sections. After all, aren't two separate pipes, or so-called "true duals", the best for performance? The answer is no, but to understand why we have to examine how a typical internal combustion engine works.
- Performance Exhaust SystemsPower, Sound, Looks | Can I Have It All With a Cat-Back Exhaust System?It's an age-old question that many have asked. Will an aftermarket exhaust be worth the expense? While they definitely can be, an important question to ask yourself is do you care more about the deeper sound they’re designed to produce, or the added performance gained from being less restrictive? As car enthusiasts, we’ve become accustomed to associating the sound of a car with its exhaust. After all, doesn’t everyone have a childhood memory or two of a car and the particular sound it made?
- Performance Transmission PartsSuspension Enhancements Will Raise The Rear Of Your Tow VehicleIf you are using your "daily driver" car or truck for occasional towing duty, you are looking for that ideal sweet spot where the weekday commute is comfortable and quiet, and the weekend trailering feels solid and secure. In other words, you don't want to vehicle to feel too "stiff" during the week, nor do you want it to ride "soft" when pulling a trailer.
- Performance Transmission PartsPerformance Transmission Coolers Keep Your Temperature Down When TraileringRecent data from USA Today states that only 6.5% of new vehicles sold in the U.S. are equipped with manual transmissions. The reverse of that means 93.5% of all new cars and light trucks are sold with automatic transmissions. Therefore, the odds are that your ride has an automatic. A less-known fact about those transmissions is that they all have built-in oil coolers, and the vehicle's radiator does double duty, shedding heat from both the engine coolant and the transmission fluid (ATF, or "automatic transmission fluid").
Hummer Performance Parts Reviews
2003 Hummer H2