(28 products available)
A VR6 header is a type of exhaust manifold that collects exhaust gases from the cylinders of a VR6 engine, which is a six-cylinder internal combustion engine configuration. The header then channels the exhaust gases into the exhaust system, allowing them to exit the vehicle. There are several types of VR6 headers, including:
Cast Iron Headers
This type of VR6 header is made from cast iron. As a result, they are very durable and can withstand high levels of heat. In addition, these headers are highly resistant to corrosion. However, cast iron headers are heavy and can limit the speed of the exhaust gases due to their shape and size.
Stainless Steel Headers
Stainless steel headers are a common choice for VR6 engines. They are made from stainless steel, which is a robust and durable material. Stainless steel headers are suitable for high-performance vehicles because they are lightweight. In addition, these headers can improve the efficiency of the exhaust system by allowing faster flow of exhaust gases. Another advantage of stainless steel headers is that they have a high resistance to corrosion. This ensures longevity and durability of the headers. Stainless steel headers can also handle high levels of heat and temperature. As a result, they can improve the overall performance of the vehicle. However, the headers are available at a higher price.
Mild Steel Headers
Mild steel headers are constructed using mild steel, which is a type of low-carbon steel. These headers are often more affordable compared to stainless steel headers. Furthermore, mild steel headers can be used in various applications, ranging from stock to high-performance engines. While they may not have the same level of corrosion resistance as stainless steel headers, they can still be coated or treated to prevent rust and corrosion. Mild steel headers can improve the airflow of the exhaust system. This enhances the performance and efficiency of the engine. However, compared to stainless steel headers, mild steel headers have a lower lifespan and durability.
Long Tube Headers
Long tube headers are designed to maximize performance by increasing the horsepower and torque of the vehicle. These headers have longer primary tubes that extend further into the engine's exhaust system. As a result, long tube headers can enhance the low-end torque and high-end horsepower of the vehicle. Moreover, they can improve the sound of the engine, giving it a more aggressive tone. However, long tube headers can make the exhaust system more difficult to install. This is because they require a larger space due to their longer length.
Shorty Headers
Shorty headers are designed to be compact and smaller in size. The primary tubes of the headers are shorter and have a more limited length. This makes shorty headers easier to install since they require less space. Furthermore, shorty headers can improve the performance of a vehicle, although the improvements may not be significant as compared to long tube headers. The compact size of shorty headers makes them suitable for applications where space is limited.
The specification of a VR6 Header is crucial because it shows what is needed to make the header work well.
Material:
The headers are made of different materials. Each one has its own good and bad points. Steel VR6 headers do well against rust. They also have a nice look. Cast iron headers are strong and not high-priced. Headers made of titanium or carbon fiber are super light. They help the engine work better. Headers made of nickel-chromium alloys are great at handling high heat. This helps the car go faster.
Flange Thickness:
Flanges are thick plates on the header. They attach it to the exhaust pipes. The thickness is usually 3/8 to 1/2 inch (9.5 to 12.7 mm). A thicker flange means less shaking. It also stops cracks. This is because the header feels less movement from the engine.
Pipe Diameter:
The pipes on the header are usually 1 1/2 to 2 inches (38 to 51 mm) wide. A bigger pipe gives more power. But it can hurt how the car pulls. This is because the pipes are too big for a small engine to push the air through. The larger pipes work best for turbo engines.
Collector Size:
The place where the pipes meet is called the collector. It is usually the same size as the pipes. The collector widens at the end. This is where it links to the rest of the exhaust. The collector helps air flow out fast.
Angle of Merge:
The pipes join at an angle of 45 to 60 degrees. This angle lets the air flow out smoothly.
Keep in mind that these specifications may vary slightly depending on the specific design of the header and the manufacturer's recommendations.
It is important to take care of the VR6 header. This keeps it working good and lasting long. Here are some tips for taking care of it.
Look at the bolts:
It is important to check all the bolts that hold the header on the engine. Make sure they are tight. A loose bolt can cause the header to shake. This will break it early. A loose bolt can also make the car noisy.
Check for leaks:
Air should only flow out of the holes in the header. If it comes out anywhere else, there is a leak. Leaks can make the car run bad. It can also be noisy. A loose bolt or crack can cause the leak. To find the leak, feel around the header with wet hands. If water comes out, there is a leak. Or, use a machine to see if there is a problem.
Check for rust:
Look for any spots where the metal is breaking down. This is called rust. If it is found, use a special cream or other way to get rid of the rust.
Clean it:
Over time, dirt and gunk will build up on the header. This is bad because it stops the air flow. To clean it, take a cloth and wet it with cleaner. Wipe down the header to get rid of the dirt.
There are numerous factors to consider when purchasing a header for a VR6 engine. They include:
Understand the Vehicle Make and Model
Different vehicles have different header designs. Before purchasing a header, understand the make and model of the vehicle. Also, understand the specific VR6 engine design, as there are slight differences in the engines.
Material Consideration
VR6 headers are made of different materials, each with its advantages and disadvantages. For instance, stainless steel headers resist corrosion and have a high heat resistance. They also have a high luster and shine, making them visually appealing. However, they are heavy and more expensive compared to other headers. Cast iron headers are affordable and durable. On the downside, they are heavy and rust easily. Carbon fiber headers are lightweight and heat resistant. They also have a sleek appearance. However, they are more expensive than other header materials.
Understand Different Header Designs
Manufacturers design headers differently to suit different vehicle makes, models, and years. Some popular designs include 4-1 and 4-2-1 headers. The 4-1 header design is a popular choice for many performance vehicles. The design improves torque and top-end power, making it suitable for racing. The 4-2-1 header design improves low-end torque. This design is ideal for everyday use vehicles.
Legal Considerations
Some areas have strict laws regarding noise levels and emissions. Before purchasing a header, understand the local laws. Also, ensure the headers comply with the local laws.
Future Upgrades
If one plans to upgrade the engine in the future, it's wise to purchase headers that will work with the potential upgrades. Talk to an expert mechanic to understand which headers will work with future upgrades.
Here is a step-by-step guide on how to DIY and replace VR6 headers:
Safety Precautions:
Wear safety glasses and gloves. Park the vehicle on a level surface. Turn off the ignition and engage the parking brake. Allow the engine to cool before starting work to avoid burns from hot components.
Gather Tools and Materials:
Ensure all necessary tools are available, such as sockets, wrenches, ratchets, torque wrench, gaskets, header bolts, and a gasket scraper. New headers will also be available for the replacement process.
Disconnect Battery:
For extra safety, disconnect the negative battery cable to prevent any electrical issues while working on the vehicle.
Lift the Vehicle:
Use a jack to lift the vehicle and place jack stands under the recommended lift points. This provides enough clearance for working under the car and ensures stability.
Remove Under Cover:
Some vehicles may have an under-cover shield that needs to be removed. This can be done by unscrewing or unbolting the cover from the underside of the vehicle.
Remove Old Headers:
Start by loosening the nuts and bolts that secure the old headers to the exhaust manifold and exhaust pipes. An extension or swivel socket may be required to reach some fasteners. Carefully remove any heat shields or other components obstructing header removal. Disconnect any EGR (Exhaust Gas Recirculation) lines or other emissions-related components attached to the headers. EGR lines may have bolts or nuts securing them, which should be removed to prevent damage.
Prepare New Headers:
Before installing new headers, ensure they are clean and free of debris. Install any required gaskets or heat shields on the new headers. These gaskets help seal the joints and prevent leaks.
Install New Headers:
Carefully position the new headers into place, aligning them with the exhaust ports on the engine. Secure the headers with the provided bolts or nuts, ensuring they hold the headers in place. Tighten the fasteners using a torque wrench to the manufacturer's specifications. Be cautious not to overtighten, as this can damage the header or the engine's exhaust manifold.
Reconnect Disconnected Components:
Reattach any EGR lines or emissions-related components disconnected during header removal. Ensure all connections are secure to prevent leaks.
Reinstall Under Cover:
For vehicles with an under-cover shield, reinstall it by securing it with screws or bolts removed earlier. This helps protect the components underneath the vehicle.
Reconnect Battery:
Reconnect the negative battery cable disconnected earlier. Ensure the connection is secure and clean.
Start the Engine:
Start the engine and let it idle for a few minutes. Listen for unusual noises or leaks from the exhaust system. Check under the vehicle for any signs of leaks or loose connections.
Q1: What is a VR6 header?
A1: A VR6 header is an exhaust header made for cars with VR6 engines. It replaces the stock exhaust manifold to enhance exhaust flow and boost performance.
Q2: What are the benefits of installing a VR6 header?
A: The VR6 header improves engine performance by increasing horsepower and torque. It also gives the car a more aggressive exhaust note. The header is usually made from stainless steel, which lasts longer than cast iron.
Q3: Are VR6 headers universal?
A: Unfortunately, there is no universal VR6 header. This is because the headers are designed to fit exhaust systems of different car models. However, some headers come in different sizes to fit various vehicles.
Q4: Can a VR6 header be installed as a DIY project?
A: The VR6 header can be installed as a DIY project. However, the header must be fitted by a professional due to its complex nature. The header also requires many modifications to fit properly.
浙公网安备 33010002000092号
浙B2-20120091-4