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The Pontiac 455 is a powerhouse of an engine, known for its impressive torque and horsepower. However, if you’re looking to unlock even more performance, upgrading your headers can be a game-changer. In this article, we will explore the best headers for the Pontiac 455 that can help improve exhaust flow and potentially add over 50 horsepower for around $300.
Why Upgrade Your Headers?
Headers play a crucial role in the performance of your engine. They are designed to replace the factory exhaust manifold, allowing for better exhaust flow and reducing back pressure. This leads to improved engine efficiency, better throttle response, and increased horsepower. Here are some key benefits of upgrading your headers:
- Improved Exhaust Flow: Aftermarket headers are designed to provide a smoother path for exhaust gases, enhancing flow.
- Increased Horsepower: Better exhaust flow can result in significant horsepower gains, often exceeding 50 hp.
- Enhanced Sound: Upgraded headers can give your Pontiac a more aggressive exhaust note.
- Weight Reduction: Many aftermarket headers are lighter than stock manifolds, contributing to a lower overall vehicle weight.
Top Headers for Pontiac 455
When it comes to selecting headers for your Pontiac 455, there are several options available on the market. Below are some of the top choices that provide excellent performance without breaking the bank.
1. Doug’s Headers D454S
Doug’s Headers D454S are known for their quality and performance. Made from durable materials, these headers feature a 1-7/8 inch primary tube diameter that maximizes exhaust flow. They are designed to fit perfectly on Pontiac 455 engines and come with all necessary hardware for installation.
2. Hedman Hedders 65104
The Hedman Hedders 65104 offers a great balance between performance and price. With a 1-3/4 inch primary tube size, these headers are designed for optimal exhaust flow and come with a black painted finish for durability. They also provide a noticeable increase in horsepower and torque.
3. Flowtech 11130FLT
Flowtech 11130FLT headers are another excellent choice for Pontiac 455 owners. These headers feature a 1-5/8 inch primary tube diameter and are made from high-quality steel. They are designed to improve exhaust flow and enhance performance, making them a popular option among enthusiasts.
4. Pace Setter 70-1005
Pace Setter 70-1005 headers are known for their affordability and performance. With a 1-5/8 inch primary tube size, these headers provide a significant boost in exhaust flow. They are made from durable materials and come with a ceramic coating to resist corrosion and heat.
Installation Tips
Installing headers on your Pontiac 455 can be a straightforward process if you follow some key tips. Here are some guidelines to ensure a successful installation:
- Gather Tools: Make sure you have all necessary tools, including wrenches, sockets, and a torque wrench.
- Prepare the Area: Ensure you have a clean workspace and enough room to maneuver.
- Follow Instructions: Always refer to the manufacturer’s installation instructions for specific guidance.
- Use New Gaskets: Replace old gaskets with new ones to prevent exhaust leaks.
- Tighten Properly: Follow the recommended torque specifications for securing the headers.
Conclusion
Upgrading to aftermarket headers is one of the most effective ways to enhance the performance of your Pontiac 455. With options available for around $300, you can significantly improve exhaust flow and potentially add over 50 horsepower. Whether you choose Doug’s Headers, Hedman Hedders, Flowtech, or Pace Setter, each option offers unique benefits that can elevate your driving experience. Always ensure proper installation for the best results, and enjoy the newfound power of your Pontiac 455!