Oem headers

Types of OEM headers

OEM headers are an important component of the exhaust system in a vehicle. They are designed to replace the factory-installed exhaust manifolds and serve the purpose of improving exhaust flow and enhancing engine performance. Various types of OEM headers are available, and they include the following:

• Shorty headers

  Shorty headers are one of the simplest forms of OEM headers. They are designed to fit closely to the engine and have short primary pipes that connect to the exhaust system. The design of shorty headers helps in reducing exhaust back pressure and improves torque and horsepower, especially in low to mid-range RPMs. Due to their design, they are easier to install and are often used in trucks and muscle cars.

• Long tube headers

  Long tube headers are another type of OEM header. They are characterized by their longer primary pipes, which extend further into the exhaust system. The longer pipes of long tube headers allow for better exhaust scavenging, which in turn improves overall engine performance. These types of headers are more suitable for high-performance cars, as they maximize horsepower and torque across a wider RPM range. However, the installation of long tube headers can be challenging due to their length and may require modifications to the exhaust system.

• Tri-Y headers

  Tri-Y headers are a hybrid of shorty and long tube headers. They have a unique design that combines features from both types of headers. Tri-Y headers typically have three primary pipes that merge into two collectors, which then connect to the exhaust system. This design enhances exhaust flow and improves engine performance by maximizing torque and horsepower. Tri-Y headers are commonly used in high-performance applications, such as racing or modified street cars.

• Stainless steel headers

  Stainless steel headers are another type of OEM header. As the name suggests, these headers are made from stainless steel, which offers excellent corrosion resistance and durability. Stainless steel headers provide a significant upgrade over the factory cast iron manifolds. They improve exhaust flow and can withstand high temperatures, making them suitable for high-performance applications. Additionally, the attractive appearance of polished stainless steel headers can enhance the visual appeal of the engine bay.

Specification and maintenance of OEM headers

The header is one of the most important components of a car's exhaust system. It replaces the factory-installed exhaust manifold and enables the engine to expel exhaust gases more efficiently.

When looking to buy an OEM header for retail or wholesale, here are the specifications to keep in mind:

• Material

  The material used to construct a header affects its durability and performance. OEM headers are made using steel alloys, stainless steel, and cast iron. Each of these materials has its advantages and disadvantages. For instance, headers made from steel alloys are corrosion-resistant and durable.

• Type

  As mentioned earlier, there are three types of headers: long tube headers, shorty headers, and tri-y headers. Each type is designed for a specific purpose. For example, long tube headers are ideal for racing because they increase a vehicle's horsepower. When buying these headers, consider the type that will meet the needs of the target customers.

• Coating

  Some OEM headers come coated with heat-resistant paint to improve their durability. The headers may also have a ceramic coating. This coating helps to increase the header's lifespan by protecting it from corrosion.

• Connection

  The headers connect to the exhaust pipes. Therefore, the size and shape of the connection point are important specifications to ensure the header fits the exhaust system. The connection point is usually measured in inches.

• Fitment

  OEM headers are designed to fit specific car models. For instance, a header designed for a Toyota car may not fit a Honda vehicle. The headers are usually labeled with the make, model, and year of the vehicle.

It is important to maintain OEM headers so that they can last a long time and give the desired results. Here are some maintenance tips:

• Check the header regularly for signs of damage, wear, or rust.
• Replace any worn-out or damaged parts of the header to prevent further damage.
• Inspect the header for leaks and address any leaks immediately.
• Debris and dirt can accumulate on the header, especially when driving on rough roads or in dirty conditions. These deposits can affect the appearance of the header and, over time, cause corrosion. Therefore, it is important to clean the header regularly to remove dirt and debris.
• Over time, the paint on the header can fade or peel off due to high heat exposure and harsh weather conditions. A faded or peeling paint can affect the appearance of the vehicle. Therefore, it is important to check the header for peeling or fading paint and touch it up accordingly.

How to choose oem headers

Choosing the right OEM header for a vehicle can be a challenging task. Here are some considerations to keep in mind.

• Vehicle Compatibility

  Ensure that the headers are compatible with the specific make, model, and year of the vehicle. This includes checking the engine size and type, as well as the vehicle's exhaust layout.

• Header Material

  Consider the material used in the headers. Stainless steel headers are durable and resistant to corrosion, making them a popular choice. Mild steel headers are more affordable but may not last as long as stainless steel.

• Emissions Compliance

  Depending on the location, there may be emissions regulations that need to be followed. Ensure that the headers meet the emissions standards for the area. Some headers are designed to be emissions compliant, while others are not.

• Performance Goals

  Consider the desired performance improvements. Different headers are designed to provide varying levels of exhaust flow improvements. If maximum horsepower is the goal, long tube headers may be the best choice. For a balance of performance and drivability, shorty headers may be sufficient.

• Sound Level

  Headers can affect the exhaust sound of the vehicle. If a louder, more aggressive sound is desired, headers that promote a sportier tone may be the choice. For a more subdued sound, headers designed for quieter operation may be preferred.

• Budget

  Set a budget for the header purchase. Keep in mind that higher-quality headers may have a higher upfront cost but can provide long-term benefits and durability. Consider the overall value rather than just the initial price.

• Brand Reputation

  Research and choose headers from reputable brands known for quality and performance. Read reviews and ask for recommendations from other vehicle enthusiasts or mechanics.

• Professional Installation

  Consider whether to install the headers oneself or have them installed by a professional. Some headers can be installed with basic mechanical skills, while others may require specialized tools and knowledge. If unsure about the installation, it may be best to have a professional do it.

How to DIY and replace the OEM headers

Replacing the OEM exhaust headers is not a complex task. Having the right tools makes it even easier. Here is a step-by-step guide for replacing the headers:

Tools and materials needed:

• New OEM headers
• Ratchet and socket set
• Torque wrench
• Extension bar
• Scraper
• Gasket remover
• Gasket maker

Steps:

• Disconnect the battery to prevent power transmission while working on the car.
• Drain the cooling system.
• Lift the vehicle and secure it with jack stands.
• Disconnect the intake system.
• Remove the bolts that connect the old headers to the exhaust system.
• Disconnect the headers from the engine by removing the bolts.
• Remove the old gaskets and clean the surface where the new headers will mount.
• Place the new gaskets on the OEM headers and mount them to the engine.
• Reconnect the headers to the exhaust system.
• Reconnect the intake system.
• Lower the vehicle and reconnect the battery.
• Fill the cooling system.

Torque the header bolts to the manufacturer's specifications using a torque wrench. Tightening the bolts with a torque wrench prevents the headers from cracking and ensures even pressure on the flanges.

Q&A

Q1: Are stainless steel OEM headers good?

A1: It depends on the user's needs. Stainless steel headers have a high resistance to rust and corrosion. They are also durable. However, they are not the best choice for users who want faster exhaust flow. Stainless steel headers can slow down exhaust flow because they have a larger diameter compared to other materials like cast iron.

Q2: What is the difference between long tube headers and shorty headers?

A2: Long tube headers have longer primary pipes that connect to the engine's cylinders. These pipes can be up to 3 feet long. The length allows OEM long tube headers to increase exhaust velocity and improve engine performance. However, the headers can interfere with the car's floor pan. Shorty headers, on the other hand, have short primary pipes. They are easy to install and are less likely to interfere with other parts of the vehicle. Shorty headers offer a small gain in performance but are cheaper and more convenient to install.

Q3: Do OEM headers add horsepower?

A3: Yes, headers can increase a car's horsepower. They improve the car's breathing by providing a better path for exhaust gases to flow. This reduces back pressure and allows the engine to expel exhaust gases more efficiently. As a result, the engine can take in more air for combustion, leading to an increase in horsepower. Different headers provide varying levels of horsepower gains.

Q4: Do headers require tuning?

A4: In most cases, tuning is not mandatory after installing headers. However, some high-performance headers can result in a drastic change in engine performance. Tuning helps to optimize the air-fuel mixture for better performance and efficiency. It also ensures that the engine runs smoothly with the new headers.

Q5: How much time does it take to install headers?

A5: The time taken to install headers depends on the type of headers and the vehicle model. Long tube headers take a longer time to install compared to shorty headers. On average, it can take anywhere from 4 to 8 hours to install headers properly.