ACURA 5003A-H001 Jun Mechine Racing Header B16B

( Part Type: Header ), ( Manufacturer Part Number: 5003A-H001 ), ( Vintage Part: Yes )

Review ACURA Rare Jun Mechine Shop Racing Header Discontinued fits B18C

Introducing the Acura 5003A-H001 Jun Racing Header, an essential upgrade for any B18C or B16B engine in your Acura vehicle. This high-performance header is expertly crafted to deliver improved power and torque, making it an ideal choice for those seeking to enhance their engine's performance.

The header is designed with a 3-inch primary pipe diameter, ensuring optimal exhaust flow for increased horsepower and torque. It is constructed from premium 321 stainless steel, known for its superior strength and resistance to corrosion. This material ensures the header will last for years, maintaining its appearance and performance.

The Acura 5003A-H001 Jun Racing Header features a 1-piece design, which minimizes joints and welds for a smoother exhaust flow. This design not only results in better power, but it also reduces exhaust backpressure and enhances engine efficiency.

This header comes with pre-welded collector flanges, making installation a straightforward process. It utilizes a 4-2-1 collector design, which provides excellent scavenging for better engine breathing. Each collector flange is equipped with a gasket, ensuring a secure and leak-free connection to your engine.

The Acura 5003A-H001 Jun Racing Header also boasts a polished finish, which not only looks great but also helps to reduce exhaust heat. This feature is particularly useful for those who prefer a cleaner, more aesthetically pleasing engine bay.

In summary, the Acura 5003A-H001 Jun Racing Header is an exceptional upgrade for any Acura vehicle with a B18C or B16B engine. It delivers improved power and torque through its optimized exhaust flow, 3-inch primary pipe diameter, and 1-piece 4-2-1 collector design. Constructed from premium 321 stainless steel, this header is both durable and corrosion-resistant, ensuring long-lasting performance.

Pros and Cons of Buying an Acura INTEGRA Type R (B18C/B16B) Racing Header

The Acura INTEGRA Type R racing header is a popular aftermarket upgrade for enthusiasts looking to enhance the performance of their B18C or B16B engines. This component is designed to improve exhaust flow and reduce backpressure, leading to increased power and torque. In this analysis, we will discuss the key advantages and disadvantages of purchasing an Acura INTEGRA Type R racing header.

1. Increased Power: A racing header allows for better exhaust scavenging, which leads to increased power output. This is especially noticeable in the mid-range RPMs.

2. Improved Throttle Response: With reduced backpressure, the engine can more quickly expel exhaust gases, resulting in improved throttle response.

3. Enhanced Engine Sound: A racing header provides a more crisp and aggressive exhaust note, appealing to many performance enthusiasts.

4. Durability: These headers are often constructed from high-quality materials such as stainless steel, ensuring long-lasting performance.

5. Compatibility: The Acura INTEGRA Type R racing header is specifically designed for the B18C and B16B engines, ensuring a perfect fit.

1. Cost: Racing headers can be a significant investment, with prices often ranging from several hundred to over a thousand dollars, depending on the brand and materials used.

2. Installation Complexity: Installing a racing header requires the disassembly of various engine components, making it a more involved process than installing some other performance upgrades.

3. Potential Exhaust Leak: There is a risk of developing exhaust leaks when installing a racing header, especially if the exhaust gaskets are not replaced during installation. This can lead to decreased performance and potential damage to the engine.

4. Increased Exhaust Heat: A racing header can lead to increased exhaust heat, which may require the use of heat shields to protect sensitive components under the vehicle.

5. Loud Exhaust Note: The more aggressive exhaust note produced by a racing header may not be desirable for those who prefer a quieter driving experience.

The Acura INTEGRA Type R racing header is an excellent performance upgrade for enthusiasts looking to extract maximum power and exhilarating sound from their B18C or B16B engines. While it comes with certain disadvantages, such as cost and installation complexity, the benefits of increased power, improved throttle response, and enhanced engine sound often outweigh the drawbacks for those seeking a more engaging driving experience.

If you are considering purchasing an Acura INTEGRA Type R racing header, it is essential to carefully consider the pros and cons discussed above, as well as your personal preferences and budget. Proceed with the installation only after ensuring you have the necessary skills and resources to complete the job effectively and safely. Additionally, consider purchasing the header from a reputable supplier to ensure you receive a high-quality product.

part # 5003ah001 price

• $107.90

specifications maniheader:

• for models: B18c
• for makes: Acura
• part type: Header
• manufacturer part number: 5003A-H001
• vintage part: Yes

returns maniheader:

• policy: No Returns

offer maniheader:

• quantity: 1
• availability: In Stock
• started: April 5, 2026
• best offers: True
• options: Ship-to-home
• sold: 0

shipping maniheader:

• service: USPS Ground Advantage
• transit: 5-11 Days
• cost: $0.00
• type: Calculated
• class: Standard
• carrier: USPS

payments maniheader:

• other
• money order
• wallet: Apple-pay
• credit card: Discover

seller maniheader:

• rating: 100.0%
• # reviews: 224

general maniheader:

• Car Truck Parts Accessories > Exhaust Emission Systems > Manifolds Headers
• condition: Used

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