Installing Headers on Your Jeep Gladiator: What You Need to Know

Are you wondering how to install headers on your Jeep Gladiator? Look no further! This guide will cover everything from the kinds of headers you need, what tools you’ll need to install them, and more. You’ll have all the information you need and leave feeling confident about tackling the project.

Are you a Jeep Gladiator owner who is looking to install headers on your vehicle? If so, this guide is designed to provide you with all the information you need for a successful installation of headers on your Jeep Gladiator. From Parts required and tools needed, to step-by-step instructions for how to get the job done quickly and easily. This guide will walk you through the entire process from start to finish!

Before getting started, it’s important that you make sure all parts are in working order and that all safety measures are taken before beginning any kind of modification involving the suspension or exhaust. Additionally, if this is your first time attempting this type of project, it’s strongly recommended that you have an experienced mechanic nearby in case any issues arise during the installation process. That being said, if you are confident in your mechanical abilities then follow these steps and enjoy customizing your Jeep Gladiator with new high flow headers!

Understanding Headers

When installing headers on your Jeep, it’s important to make sure you understand how they work and the type of vehicle you’re working with. Headers are exhaust manifolds made from stainless steel or other metals, designed to reduce back pressure in the engine and produce higher performance.

In addition to reducing back pressure, headers can also improve the overall power and sound of any vehicle. They help improve exhaust flow in such a way that more oxygen is present under the hood; this helps burn fuel more efficiently and effectively.

Headers are tuned specifically to each engine size and torque combination, which makes them not only optimal for a Glacier but ideal for any make or model of Jeep. Different variations of header styles include long tube headers constructed from thick-gauged mandrel bent tubing as well as shorty headers made with smaller tube diameters. Shorty headers maintain a perfect balance between performance gains as well as space conservation, while long tube headers provide extended gains with minimal turbulence and increased horsepower at higher speeds.

Before purchasing any combination of these products, make sure you know the exact dimensions and specifications that fit your Jeep’s particular engine size.

Explanation of what headers are

Headers, also known as exhaust manifolds, are an important part of the performance of any car. They allow the exhaust gasses from the engine to flow away from the cylinders and out through the tailpipe more freely and efficiently. This increased airflow allows more air and fuel to mix in the combustion chamber creating more power. As a result, upgrading to headers can potentially lead to better power, torque and fuel economy gains compared with stock components.

In addition to performance benefits, aftermarket headers tend to look more aggressive than factory units, adding a stylish finishing touch to your Jeep Gladiator’s under carriage. Headers also replace any restrictive catalytic converters that may be fitted as standard on your truck allowing them to breath easier and maximize their sound output without having to modify existing systems.

Ultimately you want a header that is designed exclusively for your Gladiator while also providing improved performance versus stock components; be sure to check specifications from different manufacturers before making a purchase decision.

How headers work

Headers are tubular exhaust manifolds specifically designed to improve the efficiency of an engine. While typical exhaust manifolds are cast into a single unit, headers are made up of individual tubes for each cylinder. These longer, narrower tubes accelerate the exhaust flow away from the cylinder head at a higher velocity than traditional exhaust manifolds, helping to improve overall engine performance.

Installing headers is a great way to increase torque, horsepower and fuel economy, as well as add a deeper tone to your Jeep Gladiator’s exhaust system.

Benefits of headers for Jeep Gladiator owners

Jeep Gladiator owners can reap many rewards by installing headers on their vehicle. The primary benefit of installing headers on a Jeep Gladiator is improved exhaust flow, resulting in increased horsepower and torque. This can add more power to your vehicle for off-roading or other tasks.

Additionally, installing headers increases your vehicle’s fuel economy by allowing it to burn fuel more efficiently. Finally, upgrading your headers offers a cosmetic improvement too, as the larger diameter of the pipe allows for extra engine dress-up components like chrome tips and heat shields.

All of these benefits add up to help you get the most out of your Jeep Gladiator and give it an edge over similar vehicles on the road.

III. Factors to Consider Before Installing Headers

Before installing headers on your Jeep Gladiator, there are several factors to consider. It’s important to determine the type of pipe and size you will need, as well as what additional parts, such as gaskets and studs, may be required. You should also check your installation area to make sure there will be enough clearance for the headers. Additionally, it’s important to consider whether you will need an exhaust system upgrade or if there is any additional maintenance required in order to prevent overheating or leaking. Below are some of the most important factors to consider when installing headers on a Jeep Gladiator.

Type of Header: There are various types of headers available for Jeep Gladiators, including stainless steel and aluminum versions. Stainless steel versions offer better durability and corrosion resistance but tend to be heavier and more expensive than aluminum models. Additionally, stainless steel has higher thermal conductivity than aluminum so it is more efficient at dissipating heat from engine exhaust gases. It is important to select a header that provides good fitment as well as adequate clearance for any other nearby components in order for good performance from your Jeep Gladiator engine.

Size: The size of the header you choose should correspond with the type of engine in your Jeep Gladiator. Generally speaking, a larger size header can help increase power output by allowing more flow of exhaust gases out of the engine but may require additional clearance or even modifications if space is limited in the installation area. Smaller sizes may provide better fuel economy but can limit power output if they don’t provide enough airflow out of the engine block.

Gaskets & Hardware: Headers often require additional parts such as gaskets or hardware in order to provide a secure connection between them and other components such as catalytic converters or oxygen sensors. It is therefore important that any associated gaskets or hardware are obtained prior to installation so nothing goes missing during this process which could result in leaks or other problems down the road after installation has been completed.

Legal considerations

It is important to understand the legal considerations before beginning a project to install headers on your Jeep Gladiator. Depending upon the jurisdiction you are working in, there may be exhaust modification laws or other restrictions that could affect how you proceed.

For example, many states place limits on how much sound an automobile can emit from its exhaust, which means that certain aftermarket parts and modifications may not be allowed. Additionally, some jurisdictions require a vehicle to pass regular emissions tests in order for it to be street-legal. Therefore, if you’re planning on installing headers that increase your Jeep’s power output and exhaust system efficiency, it might disqualify it from passing emissions tests.

Before you start your project, research the exhaust modification laws in your state or municipality — this can help you decide what type of header is best-suited for your vehicle while also keeping you within legal limits. Alternatively, if required by local law, consider seeking out bolt-on emissions control equipment that can help keep your Jeep Gladiator emission compliant while still increasing performance.

Compatibility with other parts

To ensure your Jeep Gladiator is running smoothly, it is critical to check compatibility between the header and other parts. If the header you installed does not fit easily with connecting parts, force may be necessary. This could result in damaging the header or incompatible interface between it and your Jeep, resulting in further issues down the line.

Make sure to take measurements twice and consult with an experienced mechanic if you’re unsure about any compatibility issues before beginning your installation project. Additionally, be aware of any heat shields or other additional components that may be required for optimum performance such as oxygen sensor wiring extensions, O2 simulators and EGT probes for emission-controlled vehicles. Installing headers without being aware of these components can lead to major reliability problems in the future and can also hamper performance gains that are full potential for your vehicle.

Cost and budget

In order to perform a successful header installation on your Jeep Gladiator, you need to establish a budget and decide how much you are willing to spend on the project. In addition, taking into consideration the cost of parts, tools and labor can help determine the overall cost of the installation.

It is important to research numbers specific to your Jeep Gladiator before purchasing any headers or other related items so that you are not surprised by unexpected charges. Taking all this into consideration will help in making an informed decision about the cost of headers for your Jeep Gladiator.

Professional installation vs DIY

If you don’t have any experience working with vehicles or car parts, professional installation is usually your best bet. This can ensure that the headers are installed properly and are connected securely to all the necessary components in your vehicle. However, if you have some automotive knowledge and feel comfortable working with hand tools, doing a DIY installation may be a better choice for you in order to save time and money.

When deciding between professional installation or DIY, consider the tools and items you will need to complete the job. Professional installations typically require specialized tools that many people don’t own, such as a lift or air jack. Additionally, some specialty bolts may be required that are not included in standard kits or must be purchased separately. On the other hand, DIY installations may also require specialty tools and components if you don’t already have them on-hand. Be sure to research ahead of time what specific items will be necessary before deciding which option is right for you.2023 Jeep Gladiator (Overview) | Woody Folsom CDJR

Maintenance and Upkeep

For every Jeep Gladiator owner, maintenance and upkeep are essential to preserving the vehicle’s performance. Preventative maintenance helps to avoid costly repairs and keeps your Jeep running smoothly. To ensure you are taking proper care of your Jeep Gladiator, make sure to keep up with the following:

  • Regular Oil Changes: Changing your oil regularly is one of the most important steps you can take in maintaining your vehicle’s health! Each Jeep Gladiator model requires a different type of oil, so consult the owner’s manual or an online lookup tool to verify your specific requirements. Make sure to use a quality oil filter and change as recommended in your owners manual.
  • Replacement Parts: Whether it’s brakes or other components, making sure you are equipped with the right replacement parts will go a long way in protecting and extending the life of your ride. Be sure to check for recall notices on parts installed on new vehicles, as well as regularly inspect parts such as fog lights to make sure they are functioning properly and safely.
  • Cleaning & Washing: Keeping up with regular washing will help protect against rust that can corrode metal particles from salt water or snow if traveling during winter climates. Be sure to wash off dirt and grime from wheel wells and gullwing doors frequently, especially in areas with frequent heavy rains or humidity where mold can form easily on exterior surfaces.
  • In-depth Inspection: Plan ahead by taking some time once a year for an extensive inspection. Check all levels including engine oil, coolant level, brake master cylinder fluid level etc.. Make note of any changes in any areas of performance such as acceleration or handling-as these may indicate that service is necessary! Checking hoses for leaks and wear is also important so be sure inspect them carefully-replace when evidenced needed. Additionally inspecting electrical connections can provide insight into potential issues with electrical systems that may need further attention like repairing connectors/wiring harnesses due wear/corrosion.

Tips for maintaining headers

Whether you’ve installed headers for your Jeep Gladiator for enhanced performance or for cosmetics, it is important to maintain them. Proper maintenance will help you enjoy your improved performance and enhance the lifespan of your parts. Here are some tips on how to maintain your headers.

-Clean Regularly: Make sure that you clean the external surfaces of your headers regularly, especially if they are made of stainless steel, as dirt and debris can accumulate on the surface and gradually affect their efficiency. A simple scrubbing with a spray cleaner followed by a quick rinse off can keep them looking great and free from debris build-up.

-Check For Performance Leaks: Performance leaks are common when installing headers on Jeeps and can potentially damage other internal engine components. Check for any leakages that may have occurred during installation or afterward due to wear and tear. It will be advisable to adhere to a regular inspection schedule based on usage until you become familiar with the behavior of your new parts.

-Oil Separator: Header oil separators should always be used to extend header life, improve engine power output, reduce exhaust odor, reduce oil levels in intercoolers/turbochargers, increase longevity of turbo bearings, and prevent fouled spark plugs resulting from oil vapor deposited into cylinder walls. Be sure they are clamped securely at all times but avoid over-tightening as this could cause warping or damage the joints permanently over time. Replace them when necessary as per manufacturer’s instructions.

-Heat Shields: Heat shields help protect other body components from excessive heat generated by high performance exhaust systems like headers installed in Jeeps Gladiator vehicles work much better than other types due to their greater durability when exposed to operating conditions which tend to exceeding temperature parameters found with conventional OEM setups. Install them as recommended by manufacturers’ instructions as failure due not do so can result in reduced life span and even risk of fire or explosion if used under extreme conditions!

Common issues with headers and how to fix them

There are a few common issues that may arise when installing headers on your Jeep Gladiator. As with any project, it’s important to research and be sure before you begin. Once you’ve decided to move forward, it’s also important to have the right tools and be familiar with common problems and how to fix them. Here are a few of the most frequent issues for Jeep Gladiator header installation and tips for fixing them.

  1. Misfit Headers: A misfit header can prevent proper installation of your exhaust system components, disrupt exhaust flow, and cause significant leakage of gases from the engine bay into the driver compartment. To prevent any misfit errors from occurring during installation, measure twice before drilling or cutting holes in your engine bay or firewall sections; read manufacturer’s instructions carefully; and ensure all hardware extends past the firewall or gasket before installing any components on top of them. If you find that a header appears too large or too small when put up against the frame of your engine bay, try grinding down any protrusions using sandpaper or chisel until it fits properly before attaching the hangers.
  2. Alignment Errors: When installing headers into your engine bay, you must be aware that they must be aligned correctly if you want a solid seal between them and their corresponding components (such as an intake manifold). Instead of taking measurements as advised in misfit issue solutions above, use mounting studs with washers to adjust headers until they appear evenly placed in comparison with other components like turbochargers or superchargers connected to them after which lock them securely in place using exhaust clamps; additionally make sure surfaces facing each other have no protrusions causing interference during sealing process.
  3. Heat Related Issues: Exhaust systems run hot – especially those outfitted with headers – so take caution when handling components during installations related to this type of setup as some of them may have potential safety risks associated due to their high temperatures when running even without “exhaust gas temperature” monitoring in place (EGT-sensor/thermocouple) on-board computer diagnostic equipment installed alongside system features like intercooler systems that protect farther downstream equipment from being “over-stressed” due emission temperature changes but only get control over ECU related functions when EGTs reach limiting thresholds set by vehicle manufactures depending on how much stress lies ahead (turbine wheels count) therefore making sure cooling air passes through front panel leading out past rear portions where regulating effect occurs further out due kinetic energy laws transfer motion cost factor related differences et cetera…Jeep Gladiator Lifted: Everything You Need to Know | Superlift Suspension


In conclusion, installing a set of headers on your Jeep Gladiator is an excellent way to maximize your vehicle’s performance and response. Aftermarket headers can increase engine power, improve fuel economy and reduce exhaust gas temperature, allowing for a more efficient burn in the combustion chamber.

For the do-it-yourself mechanic, there are plenty of resources available to make this installation a breeze. Be sure to carefully research your new set of headers prior to purchase and installation to ensure that you are getting the setup that is best for your vehicle’s specific needs.

When installed properly, aftermarket headers can turn your Jeep Gladiator from an average street vehicle into an off-road masterpiece.


What do headers do for a jeep?

Headers can increase the performance of a Jeep by improving exhaust flow and increasing horsepower and torque.

What should I upgrade my Jeep Gladiator?

The upgrades for a Jeep Gladiator depend on individual preferences, but common upgrades include lift kits, tires, and wheels, as well as bumpers, winches, and lighting.

Can you put 35 inch tires on a stock Jeep Gladiator?

Yes, it is possible to put 35 inch tires on a stock Jeep Gladiator with the proper lift kit and modifications.

What year Gladiator is best?

The Jeep Gladiator has only been in production since 2020, so the latest model year is the best.

What is the best engine for the Jeep Gladiator?

The best engine for the Jeep Gladiator depends on individual preferences and needs, but the 3.6-liter V6 is the standard engine and the 3.0-liter EcoDiesel V6 is also available.

How much HP will headers add?

The amount of horsepower that headers can add to a Jeep depends on several factors, but it can range from 5-25 horsepower.

What are the benefits of installing headers?

Benefits of installing headers include increased performance, improved exhaust flow, and increased horsepower and torque.

What are the cons of installing headers?

The cons of installing headers include increased cost, increased installation time, and potential issues with emissions compliance.

Are 37s better than 35s?

Whether 37 inch tires are better than 35 inch tires depends on individual needs and preferences, as well as the Jeep’s capabilities and modifications.

Can you put 37s on a stock gladiator?

No, it is not recommended to put 37 inch tires on a stock Jeep Gladiator without proper modifications and upgrades.

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